Shame on you Fedhealth

I have been a member with Fedhealth since 2006, on a hospital plan. . In all those years I claimed only 2 or 3 times, for minor things. They did cover my knee replacement. We, however, as pensioners found a better and cheaper option for us with another medical scheme. I called in to find what I needed to do to terminate my membership. I must have misunderstood as I thought 1 month termination was needed. I sent them all that was required, do that 1 April would be the termination and last payment. Come 2 May they took off another payment, as they claim to bill in arrears. I, as a pensioner, can not afford to pay for 2 medical aid memberships, which happened to me on the 2st May. I have begged and pleaded for them to reimburse me, but as wr no, big companies only see their members as numbers. They just don't care. They have rejected my requests.