Apple India — Swap piece

Address: Ludhiana, Punjab, 141010

I have given my set for replace because in it some technical issue occur .I had submitted it to apple service centre to date[protected] and today is[protected] .Now they are saying it will take more time because of stock availability. my phone is uner warranty .please solve my problem as soon as possible .i am fed from apple service .
case id number JLUD[protected]
CUSTOMER CODE -C0330215
SERVICE CENTRE -F1 INFO SOLUTIONS AND SERVICES PVT.LTD