SapphyMike,
Shops get charged 2.5% on credit card transactions and about 50p on switch card transactions. Do they charge you the extra 2.5% or 50p to make up for it?
i think you will find that all the small business that get charged for the use of credit cards DO actually pass it on to the customer , a company i used to work for always charge extra to cover the costs of YOUR conveniance , why should the retailer pay because you cant/wont pay by cash ?