Standard bank says they cannot stop a company i dont even know from running debit order on my account.

For months i noticed a debit order coming off my account and i have no idea who it was and why it happened. i went to standard bank to cancel that debit order as i didnt even know who it was. They said i can cancel but they cannot stop this person/company from getting into my account to get money. i dont even know who it is but they are allowing that person /company continue to run debit orders after i told them it should not be happening and i don't know where it came from.

How can you say you cant stop people from taking money from my account when i explicitly told them i dont know who that is? Is is still my account then if anyone can get money from my account. Si i stopped putting money in that account and To make it worse they are still running those debit orders and the bank is making me pay for bounced debit orders that i have told them should not be coming off my account.

this is terrible service and the bank has charged me more than R2000 for this in the last 3/4 months. this is unacceptable.