Fee increases for Visa and Mastercard are scheduled to start in October and April, according to “The Wall Street Journal.” Many of the increases are for online purchases. The changes could result in merchants paying an additional $502-million dollars annually in fees. Increases in network fees will make up a little more than half of that revenue, the rest will come from increases in interchange fees, also called swipe fees. Visa, Mastercard and the big banks have said the fees help cover costs related to fraud prevention and innovation, while banks often use the money from interchange fees to fund credit-card rewards programs. The jump in fees will most likely result in customers paying more too.