Loan paid up fnb still debiting

I had a personal loan with fnb.On the 18 April 19,requested a settlement quote which was valid until 02 may 19.I made the payment the same day(18 April 19) it reflected on the 20 A pril 19. on the 28 April a debit order went off.I contacted the call centre on the 29th,they advised I must call back on the 30th.did so and was advised by the supervisor/teamleader Thato Masilo that a manual payment reversal was done and the funds should reflect the evening by 8pm.the 1st may was a public holiday I called on the 2nd May,spoke to supervisor Moneeb Davies who advised that the previous consultant (in so many words) **** to us and the refund will reflect on the evening on 02 May 19....To date no refund has been received. I have been client of fnb for many years and I feel that I am being treated really badly as fnb is quick to take money and not return it. All I want is my refund and in return I will close my bank account as fnb has really disappointed me.

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