Terminated Contract

On or about January 2014, I joined Fedhealth medical aid. I then fell pregnant and when I informed Fedhealth of my pregnancy so that they can pay for my appointments and delivery, and they requested confirmation from the Doctor that I was not pregnant when I joined the medical aid, which my Doctor did sent to them. After that they still refused to pay for my delivery because they needed a one year report from the Doctor, which i did not have since I havent been to a doctor in more than a year. I decided to terminate my contract with them but now I see they have handed me to the attorneys for collection of the last month's premium. I refuse to pay anything to Fedhealth since they failed to pay for my delivery as agreed on the contract. I had also cancelled the contract so the did not have to bill me one month later.