What happens with the monthly PonchoPay  Pebble Fees Invoice if a PonchoPay booking has 1 or more sessions cancelled later on?

For PonchoPay bookings, the monthly invoice fee will remain based on the original full booking amount. Because PonchoPay transactions are processed off-platform, the booking fee is calculated on the initial order value placed. While Pebble waives the fee on full refunds paid by card, this is purely for financial ease and simplicity, off-platform voucher payments retain their original fee structure regardless of subsequent manual adjustments or credits issued