Completely *********** in all aspects

I joined 8ta in 2014 from a different service provider. first month they messed up my payment date and debited my account before my salary was in. By may I reported signal issues with intermittent data signal. I took me two appointments to get a technician to come out and tell me nothing is wrong. I had 2 phones doing the same thing. From there the service was terrible with people promising to phone me back all the time. this of course never happened. By October 2015,after trying continuously to sort out the problem, I had enough with billing errors, terrible service and no feedback. I declared a breach of contract and requested a portion of my fees be payed back to me as I could not use the service promised to me. I am still waiting for they're accounts department to get back to me after many promises to do so. I have communicated the breach of contract to both the call center, the supervisor dealing with this issue, and their accounts department as well as my intention to stop paying for the service which I was not receiving. I have copies of all these emails as well as emails from account ****** ups from 8ta. A truly terrible service overall.