***** committed on my account!

I got a quote from Old Mutual iwyze. A day or two later, I contacted the company and asked that they not continue with the insurance cover. About a week later, I received an sms that the cover was reinstated without my consent or knowledge. I call again, an agent confirms that he has cancelled the cover. Fast forward on the 1st a debit order goes off. I call again, the agent confirms that it was incorrectly reinstated and premiums should not have been deducted. I ask for an immediate refund for the ***** that was committed against my account. He promised to call me back and has not. This is *******. I’m have sent multiple emails and called just to fix something that your agents and company did. Why was cover reinstated without my consent and then you go into my account and deduct my money? I am already covered by another insurer!