I was called incessantly by Sallie Mae regarding online payment for a loan that I co-signed being past due. I logged in online and made payments twice. Twice it was rejected by sallie mae. I called them and asked why my payment was being rejected, and they told me that I can only make payments online using bank information. I asked them that I am using the creditcard option and I was informed that I can only give them my card information so that they may put it in from their end. I told them that they have the option online to pay with a credit card and that I am not comfortable giving my card over the phone. I informed them that I dont see why they have the option online and yet tell me that I cannot use it. My complaint is that this is a merchant deceptive practice that is misleading and that I feel that this is a ploy by sallie mae to ruin my credit history. Please assist.