illegitimate deductipon

Devotion, claiming to be a telemarketing company, continues to deduct money from my ABSA savings account. I logged a complaint with Hello Peter last week and ABSA responded. Somebody by the name of Rachel from ABSA gave me the telefone number of Devotion which is ***, and the contact person given to me was Louise. I contacted them, asked them to cancel the debit order as I had no agreement with them to take money from my account. ABSA foned me yesterday and made an arrangement for me to listen to the recorded conversation between mysefl and Zanele from Devotion in which they claimed was a source of our agreement. The recorded conversation was so inaudible and it broke off while I was listening to it. I made clearly to Devotion that I never agreed to have my money paid to them for something that wouldn't benefit myself. Rachel told me that the debit order was cancelled but to my dismay it went through today. Please help me get my money back.