SBI Credit Card — not used credit card but raised bills

Address:

New Delhi, Delhi

I have received SBI Credit card on 20/04/2015 having No. [protected] It had my name wrongly spelled. I brought to the notice of SBI Customer Care and as well I sent emails on 25/06/2015 & 27/04/2015 stating about the credit card. SBI raised constantly bills against me. I did inform that I am not using this card hence should not be raised any bills.
Now I have come to know through CIBIL reports that there is an outstanding against me and showed the negative report.
I had contacted Customer care of SBI again and learnt there is not outstanding and requested to send me the certification about NO DUES.