Bajaj Finance — service issue

Address:

400063

I have written many mails to bajaj finance regarding mobile no. Updation and mail id updation. Still it's pending. And just because my incorrect mail i'd is registered i am unable to get those services which are easily get though mails. I have given required documents to bajaj employee still my residence address via incorrect. I am unable to change my mailing addresses and mobile no. And getting problem to use customer portal of bajaj.