
If you are thinking about setting up a direct debit and handing over your card details for a regular payment (like an ISP) then hear this word of caution. Canceling a credit card regular payment is difficult, Julies personal experience was to her ongoing attempts to cancel her contract with Tiscali. They didn't reply to her letters, even though they've all been sent registered or phone calls. Eventually the only way she stopped them taking the payments was to cancel her card and get another one.
If you want to pay a regular bill then you need to set up a 'prelevement' this form of money agreement will give you the power to cancel easily with your bank.