VAT on prizes for UK contest winners
For any non-UK members reading this, VAT is a sort of sales tax (currently 20%). If you'd won a UK-based contest it wouldn't be an issue as the purchaser would have paid it. If you buy something from abroad you have to pay VAT as it comes into the country. I've no idea about a prize.
I recently won something in the Make it Real challenge, so if nobody can tell me then I'll be answering this myself when it arrives.