Hi, welcome to the forum!
It's not "only £200" - that's a lot of money to most people here!
I know very little about Purple Lounge, other that they are very new on the scene.
I know it's very frustrating for you, but 12hrs is a little bit soon for alarm bells to be going off.
Try to stay calm & patient and keep trying to contact them.
I've sign-up to 100's of online sites over the last 5-years and have never been ripped-off once. I'm sure it will turn out OK in the end.
Good luck!