Account incorrect

I have been trying to get hold of someone at ADT since Feb this year to sort out my account. Payments I have made are not reflecting on my statement. When I phoned the call centre on 22/03/2016 I managed to speak to a J.Salie and she was so rude just telling me to please just forward the proof of payments. Since then I have had to answer / response to my email and I keep getting the same statement, again today, showing I am in arrears. The reason for my concern is, should they have to break into my house, I don't want my claim being affected because of a fault on your side. Please can you urgently get someone to phone me back.