Okay, I figured out what was wrong with the website.
I went on one last time and said to the computer screen,
"right then you fucking peice of shit, this is the last time I'm going to try to buy tickets and get royally shafted by you and your theiving bastard fees. If it doesn't work this time you can shove your tickets and the whole brass section of Belle & Sebastian up your fucking arse-hole"
worked like a charm!