Option to change mobile no

I wanted to change my mobile number but after going through all the necessary steps I was told I won’t be able to change my number as a Jupiter account already exists with that number ( no savings account). I registered with my main number before but wasn’t able to open a bank account and forgot about it. I didn’t think much of it but most features are of no use to me on my second number 1) Can’t use account aggregator 2) Have problems getting a credit line because they can’t verify my income details
3) If I get the credit card it will be hard to track as my other cards are with a different number

Please look into this issue