Hello @AngelaB12 ,
How you refund a customer of yours will depend on the payment method used and the company / account you used to collect that payment.
Depending on the account you use for collecting payments for these individual services, the refund process may differ. I'd recommend checking out the refund processes for the specific account / company you used for payment collection. If you need additional assistance regarding an online store, you're also welcome to reach out to our Website Builder support for further guidance.