the same problems over and over!!!!

I have been struggling for weeks to get the speed I pay for. I have been using 3g mobile data that is way faster than the 6-12mg line i am paying for. Same excuses all the time with none qualified to fix the issues at hand. Had the same problem a few months back, took 2 months to sort out. What is going on? Why am I forced to use incredibly expensive mobile data to get work done because the line I am paying for is never working!? GET YOUR HOUSE IN ORDER! This is why your almost no one has something positive to say about your company, service and customer support.