Blacklisted for NOTHING

I was a member of Discovery since 2008, i got retrenched 2015 Feb, I did my anual tests on the 22 Feb(I was still covered) but Dischem when they submited he invoice they wrote the 10th March<br> now this caused an issue with discovery when i was applying for membership again as they picked up that i owe them, we then got in touch with DIschem who then confirmed that the errors was from their side <br> and after long struggle all this was sorted and was added to my husbands medical aid, Now i am beeing called by lawyers theu harrasing me saying i owe discovery all a sudden again, i tried to sort this out with discovery AGAIN'<br> but i am been sent from pillar to post, FRUSTRATED USER at the moment, i even feel like cancelling my current membership