Power cut off despite of payment.

My power has been cut off despite of payment, also the trigger that should warn me when my account is in a low state also don't work, it should send me an sms when my account reached R500.00 positive, I phoned them and reported this problem, and the operator had an attitude and said it worked on there side, despite that I did not received any notifications, the attitude was clear to me that I am the one that is wrong!!. For years I have no problem with accounts and or payments, now all of a sudden now that they have a meter that can remotely been switch off and on, it seems to me that now they just cut the power for any reason they like, even if I pay. The meter is fitted with a switch that cut the supply remotely, I found out at first when the contactor inspected the box at first when they installed the meter, and I asked him what is wrong with the power, and he showed me that the meter is cutting the power. This was at first when they installed the meter. Also now my accounts is now split, I have paid a deposit like everybody else, and now all of a sudden there is no deposit to back up any shortfalls so it happen, not if that should be the reason for this power cut, so why do I n