Refunds issued via Paypal will appear in your balance instantly.
Credit Card Refunds
Once we have confirmed that your refund has been processed please allow 5-7 business days for your refund to show up. Here is the information from our payment processor's website:
"We submit any refund you make to your customer's bank immediately. They will then receive the funds from a refund in their account approximately 5–10 business days after the original refund. (This is an aspect of how the banking system works.)"
"Refunds might appear in the form of a reversal. In the case of a reversal, the original payment will drop off your customer's bank statement, and a separate credit is not issued."