A travel agency is harrassing its costumer

I had given my passport to a travel agency named ' travel and rentals ' in jamshedpur to get a visa stamped for china..

I had given them all the necessary document needed.

After 15 days when i went to their office .

the manager Mr Swedesh Mohanty said that the visa officer is asking for my credit card statement , before issuing a visa . I was surprised !!

How can a visa officer ask for a credit card statement...???

I felt something fishy was going on in the agency office .. so i asked for my passport back ... But Mr. Mohanty said that they have send it to their Delhi office... it will take another 3 days to come back to Jamshedpur...

Since i was in a hurry .. i need the visa as earliest as possible... i gave them my credit card statement and a photocopy of my credit card

I feel that the staff of Travels and rentals might misuse my credit card. , as they have all the information required to purchase online through my card .they have the credit card number through the photo copy. and all personal details required from my passport .

They have a website named.. www.travelsandrentals.com

I don't know what to do ?

Kindly advise me

abhishek