African bank are bullying me into debiting my account on the 14/12/18 I wont be paid by then.

Yesterday i get a sms stating that african bank will be deducting from account on the 14/12/2018. Now I didn't ask for this because I am not getting paid early this month but they are telling me as if they know whats going on in my life. So I go into the cresta branch and the consultant makes me call the call center the guy that takes my call name is foster I tell me my story I tell him this can not go off on the 14/12/18 as I will only get paid on the 20th and I dont want any unpaid debit orders going off my account. his response is that I can send my bank statements and they will pay for the bank changes and i tell him no i dont want that I want it to go off on the 20th I didn't ask for the 14th African bank decided on their own. He says there is nothing he can do. I ask for his team leader his response even if I call my team leader she will tell you the same thing. I tell him I dont care call her. Anyway Sofia who suppose to be the team leader comes to take the call I then tell her my story she response is the same as fosters she says well it will go off on the 14th there is nothing they can do. I must send bank statements and I will be refunded for bank charges. Both of them dont seem to get I DONT WANT ANY UNPAID DEIT ORDERS GOING OFF MY DAMN ACCOUNT AND I WONT BE PAID BY THEN 14/12/18. I dont know who the HELL AFRICAN BANK thinks they are to assume that all their clients get paid early in december. This is totally unacceptable and african bank is taking advantage of me as a client. My account is arrears anyway and they can get the money on the 20h when I get PAID!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! BY THE WAY MY DEBIT DATE THAT I SIGNED FOR IS THE 25TH OF EVERY MONTH YET AFRICAN BANK BECAUSE ITS DECEMBER ASSUMES I WILL BE PAID BY THE 14/12/18 WHICH ISNT THE DAMN CASE.