Bajaj Finserv — impossible to connect bajaj customer care executive

Address: Thane, Maharashtra, 401305

I have a personal loan with bajaj finserv.

Its emi due date is every month of the second day but i want to change my due date from 2nd to 10th.

But unable to reach bajaj customer care executive i have mailed also but after an automated reply, i didn't get any reply.

At least this options should be on their website.

Dear bajaj, we expect better service than this from you.