Unauthorized debit order

I had a debit order come off my account stating miway as a ref for the amount of R1855.50. I phoned miway and they say it's not them as i don't have a policy with them. I phoned and hanged on for over 15 minutes from my cellphone only to be told i have to go to a branch. I went to the branch to have it cancelled or dispyted and was charged R45. Now it has happened again. This is unacceptable as they have debicheck and when i go to the branch they going to charge me another R45. If capitec says online banking is safe then why is people *****ing money out of my account and cannot tell me who is doing it. I want it sorted out asap or im moving to another bank. Pathetic service.