Incompetence at admin department

I signed up for a 12 months membership in September 2014, to my knowledge this membership was due to expire in September 2015.However on Dec 7th I received a call from head office saying that my membership had gone into arrears for the month of November. I told them this was not possible as the contract should have concluded 2 months prior. To which I was told that it had gone into auto renewal. I then reminded the lady that this was a contract and they could not amend it without my knowledge or consent. I was told the issue would be investigated and they would call me back by the close of day on 07.12.2015. I have since made several calls to customer care, to no avail. I eventually submitted a query online & I received a call from customer care who said I should have been made aware via sms. Upon checking the system they realized the notification had not been sent to me & assured me that the membership as well as the arrears would be cancelled & was told the issue was resolved. However, on the 24.12.2015 a debit amount of R299 went off my account, TWICE!! Three days later R319 was debited from my account. Again I was told they would investigate and call me back, im still waiting