Debited money after I cancelled

I cancelled with Moimooi and I even made sure they did receive my cancellation. I sent an email and Felichia Mamba phoned me back to tell me I need to wait two weeks to receive proof that they actually cancelled my Debit order. Today they took R278 from me and this is after I cancelled my membership with them. I want an answer as to why they lie to customers and why they took money after I cancelled. I also want my money back because they had no right to take money.