Go onto the main site, log in, then in the options section, there is a link called 'My Orders'... I imagine the option to cancel "due to unforseen circumstances" is in there...
Tim
P.s. The other option you have is to call them on Monday.
Yeah checked that "My orders" page but just gives me the option to look at it (show tab) or amend and there is nothing in either section about cancelling.
I'll give them a shout on monday.
Thanks again.
PS unforeseen event = my car developing costly engine issues