Try the debit card instead of credit card and then you will see...
If seriosly, then sites who accept debit cards state that on their order pages. Credit card is not the sames as debit card.
Here in Latvia debit cards are used in internet transactions more then credit cards, because they are cheaper and so more popular. But in general, merhants that accept debit cards on the internet are very rare.
Rosalind Gardner earned $436,797 in 2002 by promoting only affiliate programs. She reveals ALL her secrets step by step in her Super Affiliate Handbook (267 pages) www.renio.biz/rosalind/