Urgently need a replacement: iPhone 8 plus stopped working while I was in a delayed flight, making me miss both my Genius Bar appointment and resulted in having my replacement phone voided
It first started with my noticing of a dead pixel on my iPhone 8 Plus Screen. Not thinking much of it, I waited till the 30th before reporting the issue on Apple Support. As I was on exchange in Thailand then, I went to the Apple Store there to have it looked at. However, as there was no further issues, they told me to wait till I was back in Singapore to have it looked at, and that there would be no replacement charges as it was still under warranty.
On the 1st of June I noticed my camera failing intermittently; panicking, I called up Apple Support, while at the airport awaiting my flight. I even asked if should stop using my phone in case the condition deteriorated, and was left with no response. My initial appointment was scheduled at 5pm. However, most unfortunately, my flight was delayed for over 2 hours, resulting in me having to miss that appointment. It was during this delay that a diagnostic was done at 1.15pm indicating that my phone was still functional.
As soon as I landed, I took a cab down to the nearest Apple Centre, hoping to reschedule. However, due to the nature of the weekends, i was made to wait for 2 hours. An offer to replace was even made initially, with the replacement refurbished phone being brought out. Unfortunately, it was in this period that my phone started to seize up, and upon arriving at the Genius Bar at 7pm, after my extended 8 hour flight ordeal, the phone failed to turn on. As such, I was hence denied a replacement after my phone was taken in.
Is there anything I can do or who do I contact to have access to that last diagnostic done through Apple Support in Thailand as proof of its' working condition to the Singapore Store. Is this a lost cause?
iPhone 8 Plus, iOS 11.3.1