Just had this too, momentarily it wouldn't let me save an invoice (same error) - "clicking on let customer pay" or "pay by direct debit" didn't resolve the issu...
latest update is:"The next update on Investigation - 'QBO UK - Deposits created using GoCardless App have fee amount that doesn't match the actual fee on GoCard...
I contacted support - finally managed to get through to L2 support, said I would email screen shots when the issue reoccurred, which I did, buy you had already ...
