The address on that website is for a private house in Eastleigh. The domain name is registered to CGPT Ltd, of 1 The Nook, Eastleigh (which is also a private house), although the registered address of the company is 66 Hut Farm Place, Chandler's Ford, Eastleigh (which is again a private house),
So it looks like it's a one man business, run from home. It's only a week since you ordered and many small companies operate to a 14-day delivery time. The guy is probably awaiting a stock order so that he can forward your order to you.
If you've not received your goods by the start of next week, write to Hampshire Trading Standards:
http://www3.hants.gov.uk/tradingstandards/tradingstandards-contacts.htm
Chris