BitPay Questions (Refunds_

I tried buying a Panini NFT, and you have to transfer money to Panini using BitPay. It ended up being short by like 1 dogecoin, so they had to Refund the entire thing. The email said it will take 1-2 business days for a refund, like WHAT? What is happening during those two days for a coin that settles in 2 minutes. It wasn't a substantial amount of money either like $20. Just curious what is happening here, and if this is normal?