Horrible customer service!

This month on the 25th of January fedhealth decided on their own accord to deduct R12424 from my account My normal contribution being R 2000 and something. I have complained and called and just get no interest from anyone involved. I can not pay my rent this month now and I am at the point of moving my medical aid. I have never been so disgusted in any service provider in my life. I have been with fedhealth for a number of years always paying my contribution and this is how I get treated. I am so done! Never use this useless excuse of a medical aid!