Very bad client service from standard bank

I visited Standard Bank in Kathu to discuss a problem with them.They told me that on the 15th Oct 2020 they will take a double payment.The previous problem was also a mistake from the bank because they only asked once and the money was not in yet. Not once something like that happened in the past.I have a very good credit record at the bank.They did deduct the amount,but when I was there I asked them to change the date to the last day of the month for the future starting November 2020.I did not sign any papers like in the past to keep.Now on the 30th of Oct they took another payment.I Phoned them om saturday and they asked me all my information and then they told me that they are offline and they will phone me back.Today I phone the branch close to me (Kathu) but they put the phone down while speaking.They must reverse the last amount without any cost,that was due to *********** people.I phone several times today;but without luck.They must phone me please to solve this problem please. The number I called to enquire was ***.

Thank you. My phone no: ***.