Here we go AGAIN - FOURTH TIME

After some major issues with Discovery's Incompetency in 2015, I thought 2016 was going to be much better after Discovery finally managed to sort out the issues wrt my account. Well, I was wrong. First installmet goes of from my bank account in January - OVER R6000. No communication from Doscovery. Again - I had to try and find out why, It turns out that apparently I wasn't paying enough FOR NOTHING in 2015. Early in 2015, I asked Discovery what my monthly fee was. I was told the amount, made the payment and even recieved confirmation that all is OK. Apparently Discovery was in the wrong - AGAIN. They did not give me the correct amount to pay. Thus, for 6 months I was paying the wrong amount - BUT MY ACCOUNT WAS STOPPED - THUS I DID NOT HAVE COVER FOR THAT TIME. In January 2016 Discovery realised that the amount I was paying in 2015 FOR NOTHING was apparently not enough and they decided to deduct more from my account - WITHOUT SO MUCH AS AN EMAIL TO INFORM ME. They just take it from my account - How can that be justified? I see that as theft!!!! Twice in 2015 it was confirmed that all is OK with my account. TWICE I had to send proof of payment and not once did they realise.