I hate Ackerman's store

I am not happy with Ackerman's, on July they allowed Hollard to deduct 173 on my account without my consent. I went to Ackerman's to enquire about the issue, they told me that Hollard is still investigating the matter and they will ring me back within 10 working days, to my surprise instead of them calling me telling me what happened with the device insurance that they claimed that I have but they just decided to close my account and now my credit score is still affected because of them, it went down with 24 points. I contacted them lastweek they claimed that I have closed my account with them via their contact centre, to my surprise I never intended to close it before they tell me what really happened with the deduction in my account from Hollard.

Now Hollard and Ackerman's failed me because i don't know what to do anymore if they are not willing to clear my name on their system.

I hope this time around they help me