REBOOK ISSUE

H,I had my Financial Management exam todaybut things messed up so I rang up and they said they could rebook the exam. Went in to try and rebook but their is no dates for september. Rang up again they said its a fault at their part and thats why I couldnt see any dates for next week.The person on the phone said to try again this weekend on another browser but I am really not optamistic this will happen. Did anyone have the same problem as I am extremely worried that if the exam retake is on Monday and its still not sorted??