Ok everyone. Well thanks for your help.
I should have spent a bit of time learning about these factors before I jumped strait in. I had no idea that Bitcoins couldnt be reversed or traced - I read an article that claimed that each coin was basically a unique code and was easily identifiable- I presumed it would be easy to get a refund due to this fact. Obviously I misunderstood the article or it was a load of horsesh1t.
They are identifiable, in the same way that cash is identifiable, as every dollar bill has a serial number on it. And it helps you about the same amount.