Debit order nightmare

Ive been strugling with Standard Bank about a debit order that changed date from January 2022 .its been 11 months and still not sorted out im being penalised on my bank accounts and my credit score , the company they use to phone me staff threatened me , and no action was taken against this person , even the staff that did not assist properly was arrogant as he'll, their emails dont work , they take forever to answer a phone .its costing me too much , this poor customer service must stop.