TATA Indicom Postpaid — No return of deposit for postpaid conection which was not activated by tata

Hi,

I purchased a tata indicom post paid connection from kolkata in Dec 2008. And I submitted my documents and deposit. But TTSL people told me that your documents are not acceptable to TTSL. And now they are not returning my deposit telling that because you had make payment by using credit card. I contacted my times to TATA shop but they denied to pay me my deposit. I put a complain at TATA Sales no. [protected] and got a complain no. and a call back telling me that your deposit will be returned to you in 2 working days. but after 15 days still I am waiting. again when i contact to them they told me that they can't give me back my deposit.