Airtel — unable to migrate to 4g sim

Address:

560103

I have tried getting new 4g sims thrice now, each time i try to activate, i get a message that the new sim is now activated, it tells me to restart the handset but as soon as i restart the phone, it shows no network. If i put back old sim again it still works.

I have been trying to reach airtel support but they keep saying there will be a call back but no response occurs.

I have been an airtel user for 7 years, after all this frustration i am planning to apply for a number change and deactivate my number. But they are unwilling to listen to this at all, since my number is postpaid number they will keep sending the bill.