Just to be clear, I didn't send anyone round in a threatening manner, far from it. He advertised a service, I paid for that service, then never received my film and transfers. I had contact prior to me purchasing the service, but nothing after. So after 3 months of no contact or replies, my friend went to the location on his website, which I originally assumed would've been a store front. But after a little Google research it turned out to be a home address. At that point all I wanted was my film back, as I'm sure everyone who's been in the same situation would feel the same. He then told my friend he'd have it ready for me the next week. It then took a further 3 weeks to arrive.
There was no mention on illness or family problems, which I understand can cause problems and is sad. But if this is the case, you should not accept payments for a service that you can't provide.