You might have seen this Paris-based strap supplier advertising on here and I decided a few weeks ago to give him a try and spent 75 Euros on a leather strap. The strap arrived very promptly a few days later but was the wrong one. The supplier was very helpful and sent me a return Fedex label. It is now nearly two weeks since it was Fedex'd back and I have heard absolutely nothing despite four emails and contact via Paypal.
EDIT: NOW RESOLVED AND NOT THEIR FAULT. THE PERON I WAS DEALING WITH HAD A CAR ACCIDENT POOR GUY!