Incorrect Billing and cutting our electricity off

eskom have been over charging us on our account for months now. We have complained and spoken to them many times but they continued to add the estimated amount onto our actual bill. Yesterday they decided to cut off our electricity!!! no phone call, nothing. It is their fault in the first place, we have been paying our bill but they have not been paying attention. Now we have to pay an additional R700!!!! They still owe us R2000 for a deposit. Eskom is highly inadequate, greedy and inefficient and should NOT be in charge of or responsible for something like the WHOLE COUNTRY's electricity!!! and have no idea what type of inconvenience they create for other people. Do NOT respond if you are not going to sort this out immediately. We are tired of telling you the same thing every single month and nothing being done about it. your customer service is unbelievably ridiculous and no wonder there is such \****"with eskom."""