@steve5 I guess I need to say this again, but let me be clear: there is no WePay fee; there is only a 5% Lupulin Exchange fee, of which we end up sending a portion to WePay.
For any order that looks like the difference between what the buyer pays and the seller receives appears to be above 5%, that means that the buyer has used the prepaid shipping system and has paid the shipping in advance, rather than waiting for the order to be shipped and then paying whatever that cost was.
In your example, the buyer paid $36.66 in shipping costs. You did not pay UPS, you did not create a label and enter in the buyers account number and hope that there wouldn’t be a chargeback in the future; you just printed out the label and the buyer knew well in advance what the exact shipping charges would be and didn’t get a surprise reimbursement request in the future.
If you don’t think this is doing the buyer or seller any good, you are free to turn off prepaid shipping on your account and you will see that every transaction comes out to exactly 5%, at the expense of more work for you, less clarity for the buyer, and likely higher shipping charges for the buyer.