I had exactly the same thing when I ordered some buildings a while back. They do usually take around 28 days to get them shipped over from the States but sometimes longer if they are out of stock at the suppliers. Had to wait around 8 weeks to get mine but they are well worth the wait though. Unusual not to get a reply to your emails. I've always found Bob to be prompt in replying to any enquiries, damn nice chap too. Refunded the postage costs for my order in view of the long wait.