Smartcard Invalid (Ref. 3014)

Hi

I've had my virgin box switched off for ages and decided to switch on to have a look at the tv and have a message saying my smartcard is invalid with a reference of 3014 at the bottom.

What does this mean, i'm still being charged for the tv but my card is invalid, does anyone advise me on this as its the weekend i don't want to wait on the phone for ages.

Thanks in advance for any help.