Sheffield gig date change :-(

[Gig addiction]

Just had this mail from ticketweb :

"Dear TicketWeb customer,

We have been informed that the Saxon event at O2 Academy Sheffield, which was due to take place on 18 December 2011, has now been rescheduled to 19 December 2011.

Your tickets remain valid and all other details are unaffected.

Refunds are available by returning your tickets with a covering note quoting your TicketWeb reference number, preferably by secure post, to the following address, no later than 5 December 2011:

TicketWeb
PO Box 798
Manchester
M60 1WY "

Damn that sucks. I know at least one of my mates cannot go now.

I Wonder if this is the only affected date ?