[MikeSz]

Interesting one - as far as I am aware (and having some experience with the Consumer Credit Act) there is nothing to stop you paying by credit card, although I seem to remember that there is an issue with using credit to pay for credit in some circumstances. That said however, there would be nothing to stop you say using a mastercard to pay of an Argos store card for example.

Contract law can be extremely complex and is often decided on the terms agreed between the parties. Try not to think of this as offer/acceptance, rather think of it as you making an effort to satisfy your part of an executed agreement (by making payment). I will double check if there is anything in the Act that may have a bearing on using a credit facility to pay for a credit facility but in the meantime, check your terms and conditions. Even in the worst case scenario, all is not lost, terms and conditions can be struck out by a court if you can argue that they are unfair.