I have not yet applied for the credit card but soon want to be. I just found out on some sites that mastercard secure code and visa code is enabled on most of teh cards. These services makes temporary card numbers with some unique login. Is it true ? I heard this about HDFC and Kotal secure code cards which are available for 48 hours condition for all debit, credit and gift cards. I could be wrong with this, so please correct me. So if i want to sign up for amazon S3 service or rackspace hosting with monthly recurring billing, is it possible to use credit cards from india ? or we're not allowed to use the cards for recurring billing. Is it true ? How indian IM'ers are using credit cards or any other way for recurring monthly billing for online services ?