SANLAM Personal loans RED TAPE

My problem is with Sanlam Personal Loans aka RCS. I settled my loan via a consolidation. At the same time a installment was taken off my account which led to Sanlam now owing me the over-payment. My thoughts were that they would just pay it over at the end of the month....WRONG!. When I phoned to inquire, I was told that I must provide proof of payment for the settlement which was done more than a month ago by my bank. (Sanlam have all the detail on their side). Now I need to first go to the bank, get a bank letter to tell Sanlam that they received money(which they already know as my loan is now in credit) before they will refund my last premium. PLEASE GUYS....this is red-tape BS. You would be fast to call me if I should miss an installment, but slow when you owe me money. I will NOT easily do business with Sanlam PL/RCS again as it seems that I'm in a one-way street, I will now go through the effort of specially going to my bank(Quite a travel), waiting in a queue, getting them to provide me with a "proof-of-payment", send it onto Sanlam and wait for the next RT requirement in order to get back my money. COME ON GUYS.....What logical reason would you have to require a proof of payment of money which has been reflecting in your account for over a month now?