Delivered-To: info@dupno.com ARC-Seal: i=1; a=rsa-sha256; t=1792835203; cv=none; d=zohomail.com; s=zohoarc; b=I/ci93vWrsOmxLMZvMk6JcAIh+rCSKCsI6woEXOyQvG6s37L/T3cEz75dLXGd5qokZLP5uix/lugb9r+tcThrRaP6VIC6E2YFs8u7kopB5SZvcCfmvyiiCI8lSNjFw28HtIPw8DlH+DZvi6RHSqT9NUccd6ZlqWEphtQfhgkS+Y= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1792835203; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:MIME-Version:Message-ID:Subject:Subject:To:To:Message-Id:Reply-To; bh=ObJT9FY/Ep5nCh1nSksdeKJUloJJpCVelkEL20kF2Xc=; b=ZcCUuSMRWz17Fm5/B94Ql81KK9m+npJO4Mtn4wjL3j3ODf4gjZQlBKUTe4PFc8MnWidpBC7mSewBW9fN53uabowZb+c2JhViUuFJzCC2h5liQkii70bHHE2tI5/aONS54TfLjfgFF2BHLiqhy82JBDjGAkYpbjlkqQrGifAS9Yw= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of _spf.google.com designates 74.125.82.48 as permitted sender) smtp.mailfrom=mohammadmainulhasan79@gmail.com; dmarc=pass header.from= (p=none dis=none) Received: from mail-dl1-f48.google.com (mail-dl1-f48.google.com [74.125.82.48]) by mx.zohomail.com with SMTPS id 1792835200237128.58341848752434; Sat, 24 Oct 2026 02:46:40 -0700 (PDT) Received: by mail-dl1-f48.google.com with SMTP id a92af1059eb24-15943c9c005so2174869c88.1 for ; Sat, 24 Oct 2026 02:46:39 -0700 (PDT) Return-Path: Return-Path: Received: from smtpclient.apple ([103.187.24.238]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-369e8d5b841sm6464935eec.9.2026.10.24.02.46.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Oct 2026 02:46:38 -0700 (PDT) Received-SPF: pass (zohomail.com: domain of _spf.google.com designates 74.125.82.48 as permitted sender) client-ip=74.125.82.48; envelope-from=mohammadmainulhasan79@gmail.com; helo=mail-dl1-f48.google.com; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of _spf.google.com designates 74.125.82.48 as permitted sender) smtp.mailfrom=mohammadmainulhasan79@gmail.com; dmarc=pass(p=none dis=none) header.from=gmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1792835199; x=1793439999; darn=dupno.com; h=to:cc:message-id:subject:date:mime-version:from :content-transfer-encoding:content-type:from:to:cc:subject:date :message-id:reply-to:content-type; bh=ObJT9FY/Ep5nCh1nSksdeKJUloJJpCVelkEL20kF2Xc=; b=eNMkkRyWFARZ5HksoSL+fq4C4NilbwK4+Nl8HaMPQnG4rrhiCd9FIDmhtDCtGU+VJ5 iZggAvDxapoHQzNpr0u4mdD02Ugq4YTLYl0tSdh6MiXthF0eKL4k6kGjIm3p6Ig3LtG3 V/nVMnk9X8GAcfjsFk8lnoRau1CI2/E5/oD/SFn/pLtVpjHMoJwBhdQQjANaDEN4I3L0 vM+D5HvQvX5vICjcnhmkP2CXi7W+19KtaZtzB6jqiVZ3aXCLSz73l/28eOsL1ZYqixk/ ZtBMJvpWE7uHFibXJqj07EX8azQ8i17L+V8o1/y+ZzPxYqtiyWkjA6uucnMkM67lUTk7 OfZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792835199; x=1793439999; h=to:cc:message-id:subject:date:mime-version:from :content-transfer-encoding:content-type:x-gm-gg:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to:content-type; bh=ObJT9FY/Ep5nCh1nSksdeKJUloJJpCVelkEL20kF2Xc=; b=iuCKdsdFx7B9JskeHdm6RoWGAg8gNcjIx3ZKAD2NV7/Wt21CswWMHKMoAuG04u93Pk 64EvB6iMxk8pVv8BMrj+AfSkAfo+2A2EfXohUKjWGXNNA56f2BnCRB2vqsoJ0KrmZh2K iJlUovOe1Fg6R0w/prjj4iH7Ydm1YihDNTqiYzZTBXCGKOSxxbkLidZjT2n2V0g3eVHr 5dXY04FiU0oOL2NStiE5RHEYMOuYdPx9WfrTBPlcRgn/jBSWizh80jw0Lr74wEI/8/DC aSMIs+yM5IxoE2syC0K5WE7+wT8Lo18RAWS8hy/kVtrsqjbVueMeP5UoefDhlrwgGv1U A/VA== X-Gm-Message-State: AFq9FYK8gyg8+O3f+fU0rLQNEIGNb4En7piHkWzdKcXkiF2y406nJP/4 pmzuJB9R+z9f/SEcTh1JPvY2yKRPDnrbb3KEzuwCDpvQDGAKynqYQ4348f7UNw== X-Gm-Gg: AYBFou3ypFYd1jKwpLd9hhVEGvO6AoUTfrnvRh7u2iq22UcC4g3kmwtQKYbDKoPvS9p AvyaITMplXwqJamk5Jh+xigAMhtpQthlQBKyknkUyLsAnyUbgARaSVap6ufXOSEoeB4Un8TJduO zZhg90FnP7I1nGIlIvh1jzc7dGkOjTOHbLjCUPfPXBiIBSlkJgTMGtZZI9rpLPdvSrDObGFaTbH cKRiAr3dAGmwTvpfPQJlGmh1T4DHk78Fo9DfYdi1hn09KU3+zhrJqKSRul99xVkieaQt2fVvZn0 ste2cSEy64WyyMLMXyIqtfJw49OgOEqcvLD42qkmkfcoE/1jGIUNOmGAa92B/QPN74TJzc0MWkQ J95OMt7AgDLMmx7jBKJTXSpr8SLa3xVDjvr4WVdfcu1PJeTLmm7YxvUTcPUbmgGUe33eIS6/+1e 3QzbnO/rCETfxt3Af2Im2aS6qRURqIPQal/tKmIogifK9qxqJsFYZRokNeoMuVLbi90bAr9Op1+ V3+jFgtbECaXLBU2eRF98EZke+Vq74QsG1Jnvz5O60GpD9uk+S2DvadTr90uEpuU6VKUW59S1g3 EPKDJCNC83D9PI8Wpg== X-Received: by 2002:a05:7022:3c8a:b0:149:cfa4:9b3b with SMTP id a92af1059eb24-1992afd1fa8mr1881624c88.3.1792835198883; Sat, 24 Oct 2026 02:46:38 -0700 (PDT) Content-Type: multipart/alternative; boundary=Apple-Mail-B16AC2E7-BF97-4270-8B7B-21DB54DACCA8 Content-Transfer-Encoding: 7bit From: Mohammad Mainulhasan Mime-Version: 1.0 (1.0) Date: Sat, 24 Oct 2026 15:46:26 +0600 Subject: Urgent Complaint: Engine OFF Push Notifications Not Working on iPhone Message-Id: <2637FCD2-27A2-49F3-B1C3-F8EBE8240A1D@gmail.com> Cc: support@dupno.com To: info@dupno.com X-Mailer: iPhone Mail (24A446) X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZohoMail-Owner: <2637FCD2-27A2-49F3-B1C3-F8EBE8240A1D@gmail.com>+zmo_1_mohammadmainulhasan79@gmail.com X-ZM-MESSAGEID: 1792835204368162800 --Apple-Mail-B16AC2E7-BF97-4270-8B7B-21DB54DACCA8 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Dear Dupno Management and Technical Support Team, I am writing to formally escalate a persistent and unresolved issue with Eng= ine Stop/Engine OFF push notifications on iPhones while using your Dupno Tra= cker service. Vehicle Registration Number: Dhaka Metro-Ga 45-1572 Over the past month, I have called your customer service team numerous times= regarding this issue. Each time, I have been assured that the matter is bei= ng investigated, that your team is working on it, and that the problem will b= e resolved. However, despite these repeated assurances, there has been no so= lution. On several occasions, your customer service team asked me to test the servic= e using an Android phone. I followed your instructions, and the Engine OFF n= otifications worked correctly on Android. However, the same notifications st= ill do not arrive on our iPhones. Your team has already acknowledged that the notifications work on Android bu= t fail on iOS. Therefore, this is not simply a matter of asking customers to= check their settings or try another device. It appears to be a technical is= sue with your iOS application or notification system that requires attention= from your technical and development team. I would also like to raise an important question: My family uses three phones, including my wife=E2=80=99s phone, and all of t= hem are iPhones. Are we expected to change all our phones and switch to Andr= oid just to receive the basic vehicle security notifications that we are ent= itled to expect from your service? It is unreasonable to expect customers to change their personal devices beca= use a feature of your service does not work on iOS. Customers should not hav= e to change their preferred mobile operating system to use a service they ar= e already paying for. Engine OFF notifications are an important vehicle security feature, not an o= ptional convenience. I chose Dupno Tracker with the expectation that these e= ssential alerts would work reliably. I therefore request the following: Immediate escalation of this issue to your senior technical and software dev= elopment team. A clear explanation of why Engine OFF notifications work on Android but not o= n iOS. A permanent technical solution for iPhone users. A specific and realistic timeline for resolving this issue. An alternative alert mechanism, such as SMS or phone calls, until the iOS is= sue is fixed. Please review the history of my previous complaints and customer service cal= ls before responding. I do not want to receive another generic assurance tha= t the matter is being looked into. I expect a substantive response explainin= g what action is being taken and when the problem will be resolved. I have already spent considerable time following up on this issue over the p= ast month. I now expect Dupno to take ownership of the problem and provide a= proper resolution. I look forward to your prompt response. Sincerely, Md. Mainul Hasan( Paplu) Sent from my iPhone= --Apple-Mail-B16AC2E7-BF97-4270-8B7B-21DB54DACCA8 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable

= Dear Dupno Management and Technical Support Team,

I am wri= ting to formally escalate a persistent and unresolved issue with Engine Stop= /Engine OFF push notifications on iPhones while using your Dupno Tracker ser= vice.

Vehicle Registration Number:= Dhaka Metro-Ga 45-1572

Over the= past month, I have called your customer service team numerous times regardi= ng this issue. Each time, I have been assured that the matter is being inves= tigated, that your team is working on it, and that the problem will be resol= ved. However, despite these repeated assurances, there has been no solution.=

On sever= al occasions, your customer service team asked me to test the service using a= n Android phone. I followed your instructions, and the Engine OFF notificati= ons worked correctly on Android. However, the same notifications still do no= t arrive on our iPhones.

Your tea= m has already acknowledged that the notifications work on Android but fail o= n iOS. Therefore, this is not simply a matter of asking customers to check t= heir settings or try another device. It appears to be a technical issue with= your iOS application or notification system that requires attention from yo= ur technical and development team.

I would also like to raise a= n important question:

My famil= y uses three phones, including my wife=E2=80=99s phone, and all of them are i= Phones. Are we expected to change all our phones and switch to Android just t= o receive the basic vehicle security notifications that we are entitled to e= xpect from your service?

It is un= reasonable to expect customers to change their personal devices because a fe= ature of your service does not work on iOS. Customers should not have to cha= nge their preferred mobile operating system to use a service they are alread= y paying for.

Engine O= FF notifications are an important vehicle security feature, not an optional c= onvenience. I chose Dupno Tracker with the expectation that these essential a= lerts would work reliably.

I theref= ore request the following:

  1. Immediate escal= ation of this issue to your senior technical and software development team.<= /span>
  2. A clear explana= tion of why Engine OFF notifications work on Android but not on iOS.<= /li>
  3. A permanent tec= hnical solution for iPhone users.
  4. A specific and r= ealistic timeline for resolving this issue.
  5. An alternative a= lert mechanism, such as SMS or phone calls, until the iOS issue is fixed.

Please r= eview the history of my previous complaints and customer service calls befor= e responding. I do not want to receive another generic assurance that the ma= tter is being looked into. I expect a substantive response explaining what a= ction is being taken and when the problem will be resolved.

I have a= lready spent considerable time following up on this issue over the past mont= h. I now expect Dupno to take ownership of the problem and provide a proper r= esolution.

I look f= orward to your prompt response.

Sincerel= y,
Md. Mainul Hasan( Paplu)

Sent from my iPhone
= --Apple-Mail-B16AC2E7-BF97-4270-8B7B-21DB54DACCA8--