New service debited but not delivered.

In the beginning they were great. Now if you get any response for anything you are lucky. I ordered a new service (LTE) 3 weeks ago and I have asked for feedback and I get no response. They have however already debited my account. Eventually I got a response and uploaded documents I was never asked for. Now a week later and still no feedback. I am seriously going to cancel all my services if this is not sorted out.