Wesbank- Poor service

The sevice at Wesbank has deteroriated badly. I recently sold a vehicle, which was settled by the dealership, full settlement amount on 29.03.202. Wesbank then proceeded to take my debit order off AFTER the vehicle was settled, claiming that it was within the 5 days before month end, so they could not stop it. ( 01.04.2022)Fair enough. I requested a refund of this debit order, which was only refunded on 12.04.2022. One would resonably expect that Wesbank would therefore conclude and terminate the contract after all debits , credits and settlements have taken place. But NO......Yesterday 18.04.2022, I'm sent another statement, for THE SAME VEHICLE, informing me that my debit order will be coming off on 01.05.2022!!!! After NUMEROUS phone calls to Wesbank today, 19.04.2022, and being shunted from one person to another, being given reference numbers( which, after being provided with on 12.04.2022 have zero impact on ANY action), I ask for an account manager today. I was refused by the call centre agent, who had an extremely abrupt manner, who said he would escalate the matter. So, from 29.03.2022, when my old vehicle was settled, paid up- till today 19.04.2022, the account is still open. Is this customer service, and looking after loyal customers Wesbank??? I think not.