Fraudulent Transactions on Abbey Business Bank Card

Wartavia

Having been the victim of card fraud twice in less than 2 months, I am asking for your ideas and opinions.

I have a Visa debit card with my Abbey business account and at the end of March, I noticed two transactions to Empire Stores for a total of £655. They refunded the money and issued me with a new card in April.

I logged on yesterday and noticed a transaction to Tesco online for £144 which I knew nothing about. Since my first card was used fraudulently, I have been incredibly careful with my new one.

I have used it an ATM once (inside the branch), the only shop I've ever used it in was my local post office. I have only used the card online with 3 suppliers and a domain registration company.

I don't use wireless, never use internet cafes etc, never take the card out of the house unless for a specific reason. Any ideas?

I though of

a) a keylogger
b) internal fraud at the bank
c) someone dodgy at one of my suppliers

The bank told me that the first card fraud was definately a dodgy ATM or had been cloned in a shop, but this doesn't seem right to me.

Thanks