[prettylily]

Maybe I'll try and find a 32 A and see if that's any better.

That shouldn't make a difference. If the cups are riding up, it's because the band is too loose (all 32 bands are the same, more or less). When your bra is on, you shouldn't be able to stretch the band far away from your skin. The band should also sit levelly instead of riding up in the back.

Oh, and my underbust is 26in....odgy::Huh:

Yeah, you'll probably have to look for your sizes online.