Bad service

I have upgraded my contract with autopage cellular last year when I upgraded my contract said I'll b pay for the data bundle SIM card and a mobile wifi, so since last year I have been waiting for the mobile wifi even now I call them every now and then they keep giving excuses like my line is bad they can't hear what I'm saying and sometimes the phone would ring and no one answers, I have also send them emails but not help has been provided, I'm sick and tired of their bad service and I can't pay for something that I don't have