unhappy customer

I have proof that i paid my account on time and as per the statement they sent. we needed to pay 440, I paid that amount and to my surprise my services have beeen suspended. I called them and they make you hold for long and then cut the call. Fibre ninja is pathetic and im thinking of cancelling my services. even last month we had the same problem. Im going to take this to twitter as well because im tired of this treatment