Good service parts department but lack of good service in admin side

I want to rate 5 stars because of Tertius in the part department, best service fast service and always friendly. Unfortunately I have had a problem with a compressor bought there which I sent back after buying new one for customer. Service was great from Tertius sent me a refund form to fill in after having the compressor tested. Which he sent to admin to sort out refund. Had to phone admin just to find out payment has not been done and they will do it this afternoon which means I will only have payment next week Monday or Tuesday. After there was said payment was done on Tuesday.