Booked on-line on the UK web site for a car in South Africa only to find the terms and conditions on the web site were different to the ones I would have to sign in South Africa.
Rang and cancelled and got a refund less £30 fee. Complained as they can't, by law, change the terms after the contract was agreed. Was promised a refund but it never came.
Complained again and was promised a refund and guess what? It never came.