I apologize for the inconvenience that this situation has caused. I understand that the buyer is claiming that she did not receive a refund. Upon checking the order ID that you have provided, I can see that the buyer was successfully refunded with the amount of $20.95. Therefore, rest assured that this will be credited on the buyer's credit card.
I hope that this information has been helpful to you. Should you have further concerns, feel free to contact us and we will be glad to assist you.