I was able to make an advance payment. I did that on Wednesday by calling a CitizensOne rep. On Thursday AM logging on to the CitizensOne website showed the payment as having been made. I called up CitizensOne again to make sure they showed 12 payments as having been made, and they confirmed it.Can anyone that enrolled in IUP last year, confirm that they were able to make advance payments? It seems odd that you would not be able to do that.