Currently, we do not support processing refunds to E-Checks directly within ASAP. However, you should be able to still process the refund back to the purchaser by logging into your payment gateway account and performing the action there. After you have processed the refund through your payment gateway, you should then record the refund within ASAP as "Other" and leave a note as to how this refund was performed. The other method would be to issue the refund separately outside of ASAP such as towards "Cash" or "Check".