Airtel — airtel money is blocked by the company

I have forgotten my date of birth please help me to find my date of birth which I have registered in my Airtel number [protected]. I have called to customer care but my problem is not resolved they did not respond me properly, I have remembered my Mpin yet I am unable to reset my Mpin what should I do now I didn't understant...i am planning to send a copy to consumer court if my problem is not resolved and post to social media as well so that if anyone is thinking to use Airtel Payment Bank be aware of this fact . I have some money in my wallet and I am unable to recover it.