unfair late fee?

[Big Gay]

I've just been charged 12 pounds by my Alliance+Leicester/MBNA Credit card for paying my bill 2 days after the due date.

I've been paying that bill for years by standing order, but they decided to move the due date 8 days forwards. They apparently wrote to tell all customers about this in July, but I do not recall receiving a letter - but I may have simply thrown it away assuming it was Junk.

1) how can I make the thieving bastards give my money back.
2) more importantly, how can I get them to move the payment back so I can afford to pay it on time.

[BumbleBee]

When this happened to me I called up and asked how much my balance was and said that because of the late fee etc I would like to pay off the entire balance and close the card. Five minutes later my money had been refunded and apology received. I didn't even have the money to pay off the card and was only bluffing. It might work, it might not. I guess I was lucky!