Unwanted debit order

I trusted Capitec Bank with my money. There is a debit order that went off my account by the name of 'Bestintern' on the last two months 2024.I really know who the hell is this company.The debit order can't be reversed via app and I phone Capitec and they told me to reverse it, I did that exactly, but they kept coming back. I really don't know the company that debited my account and the number that they furnished as a contact it doesn't work. I asked at the bank to stop the debit order they said they can't and thus on the app is refusing. The bank cannot help to reverse a debit order and to stop future debit order. I am not safe with Capitec thus thinking of closing the account and leave. I had Faith in Capitec to help reverse this debit and to stop it please. I'm responsible for the charges not this BESTINTER OR CAPITEC.