Request to freeze account not processed

My contract ended in October 2017 . I made a request to freeze my account for three months from January 2018 because I was no longer working. I no longer stay around Joburg but I made an effort to go to the gym I'm commissioner to sign the form to freeze on the first week of December 2017. In order to make sure that my request was process I called the gym after 14 days to check whether or not my request was approved and was told that there is no record of me submitting the freezing former. SInce I was now away from Joburg I ema**** proof that I was not working anymore to them and requested that they freeze my account for three months(That was 2nd week of December 2017). To my surprise Im waking up to my account with a negative balance because Zone Fitness Debited my account after 2 attempts trying to freeze my membership because I can't afford the gym anymore