Hello iQOO team , please help me i am a long time iqoo user currently using iqoo7 5g device. 

My device is currently out of warranty. My device have Green Line issue and after sometime my display got blanked and when i approached service centre on call they said it needed display replacement which cost is quite high compared with today's value of my device if i purchase same new model. I have a free display replacement coupon i got with my phone box is it still applicable? , my device is in brand new condition and don't even have a strach and it still turn on , display fingerprint still working only my screen is blank . Please help me getting my device fixed.

Contact telegram - tarungoyal0