Credit card arbitrage and credit ratings. uk only.?

If i transfer 3 credit card maximum amounts at 0% for 15 months to my hsbc credit card then move this money into a bank and use it as a deposit for an investment which will mature in a year and then pay all the credit cards back will this badly affect my credit rating. any website phone no i can call to discuss this?
Answer
I know somebody who tried to do this and the bank would not wait for the investment to pay out - eventually he had to declare himself bankrupt. nice thought though, if you can get away with it