Double debits!!! Taking no ownership

So I have an agreement my banking account is to be debited once and only once a month. Yet my bank notifications as well as my debit order screen in my app shows otherwise ! Confirmation I got from my bank confirms this. My bank tells me reversals can’t be performed because the financial institute needs to do it who is debiting my bank account. I called NBA! The agent tells me no the bank needs to, I told her no the bank says you people have to! She asks me am I sure it’s Norman bissets i told her lady please!!!! Of course it’s you people your reference of debit is the same on ALL the debits that came off my account don’t make me BE***!!!!! I’m unemployed I need to scurry for money and when you people are sorted you touch my money I need to see to my kids and other things!!!! I was told send the screenshots to the WhatsApp and email I did that and you telling me it takes 3 weeks to reply???? And it takes no response on the WhatsApp line up to 24 hours on two different days? COME ON!!!! I expect my double debits returned to my account!!! Coz clearly like in Afrikaans : iemand vang *** an!!!!