rainbow club shoes- do they come up big?

I purchased some in a 6 which is my usual size and they are a perfect fit.

I got Rainbow Club, and no I dont think they come up big at all. Like you I'm a size 5, in all shops, and I got size 5 wedding shoes and they were perfect. (tho havent dared wear them since i bought them incase i get a mark on them!) I got mine half price in John Lewis. really comfy.

I had a pair of Rainbow Club shoes and the fit was true to size. It might depend on the style a bit though, for example I find round toed shoes tend to be a bit more forgiving as you're not trying to squish your foot into a point!

Mine are a 4 and fit great

I think it depends on the style. I had a pointy toed pair in 7.5 (my usual size) and they felt a bit pinchy on the toes, but the 8 gaped at the back. However, when I tried on a couple of pairs with more rounded toes, the 7.5 fitted really well. Having said that, I wore my shoes for 12 hours, and they only started to hurt for the last couple of hours. I thought I'd have taken them off long before that!