Airtel — For reissuing my number (I.e., [protected])

I want to file a complaint on airtel for misleading me from past 1 month. I have placed a request for reissuing my mobile number, which is [protected] At 20 november 2020, as it was disconnected by airtel at the respective date of 26 august 2020 for non payment of my monthly bill. They first told me to go to vodafone idea because my number was originated from idea at the very beggining. But i have ported it to airtel due to some network issues. After so many mails and visits, vodafoneidea told me that my number is still in airtel and i can get it from them. Hence i went back to airtel with a mail about my quarry, with which they reverted me that they have the number and i can visit the nearby airtel store with my credentials. On the next day i visited to rajouri garden's airtel office and they told me that they dont have the number. I dont know why they are toying with me but its really annoying and i am getting frusterated by there pethetic service. They promise to hear evry question but here they are avoiding me and misleading me from pas 1 month.i have told them thousands time that this number is sooo much important to me, but it seems like they are not interested in solving my problem. Please help me with my quarry as you guys are my last hope. Please this number is soo much important to me.