Theur facebook site says "Please note, Heort Ieg Classic Motorcycles is no longer trading, the business has been taken over by Castle Decals. All orders are been dealt with by Castle Decals, including back orders."
However no contact details are given, and a web search for Castle Decals only finds Disney stickers.
A comment on thee facebook site says "Avoid at all costs, no goods, no replies and no refunds, scam site."