There are many of us that have been badly stung by credit card companies that have charged exorbitant fees to use their credit cards. Several years ago an APR of 25% to 29% was common place which in simple terms means that if you borrow £1,000 your interest on that money would be £250 to £290 a year. Criminal when you think of it but I suppose we have to consider interest rates were much higher 8 to 10 years ago and there were fewer credit card companies on the market.Today the low interest rate.