Loan payment arrangement double debited

Thursday 17 October 2019-I phones the nedbank call center explaining my plight about being unable to pay my full installment of R2919 for my personal loan and asked if the installment can be reduced. I explained my personal circumstances and the consultant seemed understanding she told me after 3 months my normal debit order would resume unless I call back in and my situation has not improved. I’m well aware of my consumer rights and the next day the sms and reference number came through confirming this arrangement Nedbank Personal loans arrangement confirmation: Payment of R1200.00 by debit order starting from 25/10/2019 for 3 months. ***. I woke up at 1.45 am to find today the 25th of October Nedbank has debited me TWICE for R2919 and R1200 this is pathetic service and extremely inconvenient and I want it refunded back into my account. Nedbank should be reported to consumer watch for doing this to its customers or maybe I should just change banks.