We recommend computers that are submitted for review, we don't review or recommend companies. I suggest that you take a look through our forum archive - you'll see threads complaining about pretty well every computer supplier in Britain.
I'm not aware of the precise circumstances surrounding your order, or the reasons for the faioled deliveries to which you refer, but I must warn you to be very careful about alledging fraud unless you have concrete evidence to show that the comany deliberately set out to deprive you of your money and had no intention of supplying the computer. I'm quite sure you don't have such evidence, and therefore there's no question of fraud.
If you've asked for your money back there's not much we can do to assist you - apart from advising you that under current UK consumer law they have 30 days from the date of cancellation in which to make the refund to your card account.