There's a few online sellers that you might try. If you google wetsuit warehouse there's a few similiarly named suppliers, I don't know if they're all the same people or not wetsuit warehouse, outlet, centre etc. Also decathlon, but maybe they're sold out?
What do you want the wetsuit for - there's different ones for diving, surfing, swimming, other watersports or simply not getting cold while messing about in cold water.
www.watersportswarehouse.co.uk/pages/choosing-your-wetsuit
My diving wetsuit was just over £200, but it's a semi dry, which means it's better for water that's a bit colder and it's very stretchy, which means that it fits well and is a bit easier to put on, but it's a bit tight at the moment, so I wear a rash suit underneath so it's easier to get on.
Have you tried a local surf, dive or watersports shop? They'll be able to advise on whether any particular brand is better for fit, whether it be womens with a tall option, or mens that are Ok for curvier figures (probably less of an option because the top half will be too big, especially if you're a curvy pear - the sizing you'll need to get your bum in will mean the top half will be too big on the shoulders. Also women tend to have longer legs and shorter bodies than men of the same height).