Apple India — Hathi le liya tha bina sud ka

Dear sir /mam i have purchased 6s in november month and my phone got display issue in february i summit my phone to service center on 14 feb after a week they returned my phone and said there is no problem in this phone and ask me to resubmit again if i have face the same problem with some video and photos of display i did so i had sent to video evidence to service center and they said to me resubmit phone after holidays of holi then
We had lock down still my phone is not serviced even at time of purchase i got one year assurance o[censored]se in warranty period it means my whole warranty would be laps