State Bank of India — Changed Mobile number approval for internet banking

Address:

Ranchi, Jharkhand

I have sent my application form for Mobile number change approval as i stay in Mumbai after talking to the concerned person for it
It has been 10 days, my mobile number has not been made changed. I am in a problem because I need to do transactions through internet banking.
Everyday I call asking about it and today after 10 days they are telling me to send the form again.
I am very disappointed by its customer service.