FamPay Account Stuck on an Old Number I Can No Longer Use

I have been facing a login problem with the Fam Pay app for a long time. I had created and logged into my Fam Pay account about one year ago using my old mobile number, but I no longer have access to that number. Now I am trying to log in using my Aadhaar and my new mobile number, but the app shows an error saying that this Aadhaar number cannot be used because it is already linked with my old number. Due to this, I am completely stuck and unable to use my Fam Pay account. I contacted Fam Pay support about this issue but I did not receive any helpful solution. I am ready to complete any verification they need, such as providing my Aadhaar and a selfie, to prove that the account belongs to me. My old number ends with the digits 67, and I now use Fam Pay from Jabalpur, Madhya Pradesh. The phone number I want to link to my Fam Pay account is 9340555359. I request Fam Pay to urgently unlink my old mobile number from my account and update it with my new number so that I can log in and use the app again. I want this issue to be resolved as soon as possible because I want to continue using Fam Pay without any further problems.