Airtel — postpaid sim disconnected but prepaid not activated even after 2 days and continuous mails and calls

I had given my number for postpaid to prepaid conversion. The postpaid sim was disconnected on 6th december around 2:30pm. But the prepaid sim has not been activated till date. I visited the store multiple times to enquire for the same. They always asked me to wait for another 2 hours for it to be activated. I even called them multiple times and now they are not picking up my calls.

I contacted airtel through mail for which they said details where not updated and to contact the store. Even after doing the same, theres no update. I send two mails to airtel after that. They had asked me for the store details and my alternate number to contact me and said they will attend the issue as soon as they receive the details. Its been more than a day since i send all the details but theres no response from airtel side.

The airtel store address is as below:

No 6, 80 feet road, 4th block, koramangala, next to maharaja hotel, bengaluru, karnataka 560034

I would like my sim to be activated as early as possible as this is my primary number and used for all transactions.