Airtel — my airtel number deactivated

Hello,
I want to complaint against airtel. About 3 months ago i have requested for porting my number from postpaid to prepaid and after one and half week they have deactivated my number without notifying me.
When i raised concerns about that they said from my side the number was still pending to call. This they have not said to me while i was requesting for porting my number.
Also this information i received after 1 month of my number deactivated.
After that i asked them to patch me with their senior authority and they connected with me. They also said that they will reactivate my number but its been more than 15 days i am still not getting replay from them.

Actually i am out of country for some time and because of the number deactivated i am not able to do any transactions from here because all my otp's related to accounts goes to that number.
That number is also registered with my aadhar card and now i am struggling to verify my details for my online accounts as everything is now related to aadhar and if that number linked with aadhar is not active you will not get otp (One time password).

Airtel nodal officer suggested me to send my blood relative to one of their airtel own center. I sent my brother to the center and they said they don't care if my number is deactivated they will not give me the number. Now one side nodal officers from airtel saying we can get the number from their center and other side center people saying they don't care.

Please help me, as i am facing alot of challenges because of this.

Regards,
Shashank gupta