Taking the last cent from a family man

So I recently joined Bonita’s Medical aid Which I truly regret after just a few days Firstly they double deducted my account in February, no notification was given neither by mail, fax , sms ... etc Secondly then they penalize me with a late joiners fee of R500 , yet I had uninterrupted medical aid and all the certifications was sent to them or handed in at their offices Then they also advise me a 12 month waiting period for my eye which I have had a corneal replacement done but marked it as Corneal corrosion Went to their offices to discuss this and an enquiry was sent to their underwriters as clearly not carefully read Just when I thought there was light of the end of the tunnel , I receive a mail to say my benefits has been suspended I have already had so much stress due to this and when I ask to terminate my membership they responded with a 30 day notice and will most probably deduct my account for device I never even use cause we are literally not even a proper month and I ask to waiver the 30 days and they insist So all done and said I walk away with bitterness and more than ten thousand rand less in my pocket for a medical aid I never even got the benefit to use Day light ******* and feels like they are only out to rob a person although I appeal to allow me to resign with immediate effect As all of us has got a family and bills to pay But hey so far it appear that no matter what they wrong me already they just in it to make money So the medical aid once again take from the man off the street with no remorse