Citibank — Citi bank wrongly updating the phone numbers on the address

Address:

Rangareddy, Andhra Pradesh, 500018

I applied a citi bank credit card . They wrongly updated my phone number on the address and i am unable to get the CITI bank credit card. when i called the courier services they said that bank updated Phone number wrongly . When i called them their response is very harsh, they said i entered wrongly while entering the application. If entered wrongly how can i get a verification call for the card..