ICICI Bank Credit Card — Fraud on Credit Card

Dear Sir/Madam
09 Feb 09 I got Messges on my mobile
Dear Amit K Garg you made the transaction of INR 7000 on your card at Bharti Celluler
I got this type of 8 messages with diffrent amount of transaction, Total 30, 000 amount transect at Bharti Celluler from my credit card.
Releated to transactions of my ICICI Credit Card which has't do by me, I called on customer care and enquired for same and requested to block my credit card and verification of those transaction.
After 2 days again i enquired for same but i haven't get any feed back from there side consern persone was saying process is going on they are investigeting after competion of prosess they will inform me.

But my credit card was with me i haven't given my credit card or information of credit card to any one then how it is possible, any one can do transaction from my credit card and all the transaction are done at Bharti celluler with in 10 minutes.
If any one has done the transaction then bank should provide complete information about that because they can track transaction but I can't. they are not providing Information also.

Regards
Amit Kumar Garg
C.N [protected]