Refund still not processed. Multiple follow ups but no action!!! Useless!!!

Last year I sold my property which was financed by FNB Homeloans and in Oct the transfer occured to the new owner. I have already paid the installment for Nov at FNBs request. They informed me that I would receive the money in 40 days time after registration which would on 28 Dec 2018. I then contacted FNB on several times after the 28th Dec 2018, and I was advised that it would be processed asap. Then I called FNB again on 2 and 3 Jan 2019 to enquire as to why the money wasnt deposited to my account and I was informed that it was going to be expedited and it would reflect ASAP? To date, I still have not received my money???!!! I do not understand what's the hold up and I am sick and tired of wasting my airtime by waiting on the line for a call centre agent to pick up the phone and when they do they cant even assist me! Plz deposit my money ASAP!!!!!!