A UK woman has been left baffled after she ordered a size 16 bikini, and instead was sent two separate size 8 bottoms instead

Katrina Harradine, 29, purchased the £7.60 (NZ$14.60) two-piece bikini from online fashion retailer Boohoo.

She told Metro she was excited to wear the swimsuit for her upcoming holiday in St Lucia, but when she went to try on her new swimsuit before the trip she was in for a nasty surprise.

The freelance project manager took to Twitter to call out the UK retailer and shared photos of the ridiculous gaffe.

She wrote online, "Hey @boohoo_cshelp did y'all run out of size 16 bikini bottoms so send me two size 8's as a maths joke?? I actually wish I was kidding!"