Refund Woes

I paid a booking fee to deliver at Oxford Midwifery Unit, unfortunately I delivered before I could make it to the facility, they then said they would refund some of the booking fee. I waited a week since they said they run payments fourth-nightly. On the Friday which I was supposed to get my refund nothing was refunded, I called all day and all weekend, even sent an email but there was no response. Monday I'm told my payment was not processed because they didn't "trust" that the banking details were correct, common sense would say request proof of account. Monday I was told the payment is being processed that afternoon, AGAIN it wasn't, sent a message- no response. Called Wednesday morning, the Billing Administrator wasn't even aware of my refund, now I have to WAIT AGAIN for Friday and say prayers that they actually pay. The incompetence over such a simple task is so disappointing and it's been passed as a "misunderstanding" clearly someone doesn't want to take accountability.