Wesbank refund delay tactics

Disgusted in Wesbank service. Settled my car in full, and debit still went off (debit date 25th OCT). Requested a refund on the 27th Oct. Received reply that validation will be processed and receive feedback in 48hrs. Received feedback that it is resolved. No payment to date. Lodged complaint on the 5th in which they called me and said that the funds was already supposed to be refunded. To date, so funds reflect. Best is in future, if debit still goes off after account has been settled, rather just request your bank to reverse the debit. Less hassles