We use Cardsave after getting fed up of Barclays stitching us up over card charges. Cardsave have been fine for the last couple of years. Points to bear in mind though, they sign you up on a rolling 12 month contract, you only get the chance to renegotiate/leave just before the 12 months is up, without paying release fees. Also they do negotiate on price, Go to your local Costco and pick up the leaflet giving 1.1% charges on credit cards, it will help get as good a deal as you can