How do I pay a 3Rivers loan/credit card/mortgage/line of credit? Log in and select the “Transfers” tab. Select the accounts you wish to pay from and pay to in order to initiate the payment. Have more questions? Submit a request 0 Comments Article is closed for comments. Related articles Where do I send Mastercard credit card payments? What is the cut off time for processing regular bill payments? How many ways are there to apply for a loan at 3Rivers? How much cash can I withdraw in a day at an ATM? I forgot my user name. How do I retrieve it?