Just tried to enter online, all seemed ok, ??23 for an affiliated entry, and it came up as ??48 when I went to enter card details. Can't see anything in the website to xplain, they do ask for Tshirt size, but there's no option to not have one and nothing to say its an extra. And at ??23 not that cheap anyway! Anyone got any ideas? or also had trouble on this entry?