Xiaomi India — Delay in warranty claim

I gave my redmi note 10 pro max on 26 November 2022 in mi service centre located at paschim vihar then they said that it will be repair within 7 days because there is shortage of spare parts and phone's motherboard need to change and after 7 days they extend the time limit to two weeks more but still after two weeks phone is not repaired then I complain to all india helpline (complaint with reference number: WOIN[protected]) and they gave a time limit of 10-12 days and said that the problem will be resolved before that, but still not repaired or replace. Today, 28 December 2022 it's more than a month there is no update.
I want my phone to repair as soon as possible or repace.
#badservicexiaomi