Disgusting service!

I was retrenched due to covid19. I submitted my retrenchment letter and UI19 early June to lewis stores in Oxford Street East London. I then requested that the debit order from a third party's bank account to be cancelled as i would not be able to refund this person for any debits made. I was told the debit order is cancelled. End of June came the third party called me to say they deducted. I then called them again to cancel then they went and deducted twice end of July. I called them again as this person is now furious. I spoke to Thandi she said she will request for it to be cancelled. Head office calls me to tell me that they will not cancel the debit order unless i give them another bank account as per their policy. What a stupid policy as i am retrenched so what other arrangement can i make. I am claiming from their insurance and still have not received any feedback about that yet they once again forcing for a debit order. The manager Crystal forced me the first time for a debit order yet i get paid cash so i asked the third party for his account. They refuse to refund the third party for money they took out of his bank account. I did my part to submit all documents and cancel the debit order yet i get ignored. What do they not understand about its not my bank account and so its not my money they are taking! Lewis has given my hell through out this contract. By far the worst experience i have had with any company. They don't value their customers at all. Disgusting service and i would never recommend them to anyone.