pooooor service

I am sick and tired of calling the call center, since I am on the price lock plan I get issues on issues, my bill is never the same or they don't debit me. I decide to pay on my own more than what I am supposes to pay but every time my bill goes up, I don't understand my extra view line is suspended and no one can assist, I was called to say that there was an error on they side they will credit my account, this month I get a bill even higher telling me I am in arrears, can I please get a competent person to sort me out, today still *** contact number. struggle for 3 months now