Continual overbilling without rhyme or reason

My account that has been relatively stable since its inception (and before) skyrocketed in April and has been erratic ever since notwithstanding no change in my behaviour. I only realised this in June (debit order) and immediately tried to phone the help line.<br> Complaint 1: The help line does not tell one it cannot help you, it tells you it will put you through, rings a number of times and then cuts you off.<br> After incessantly trying to get hold of someone, I go to the Branch in Brooklyn.<br> Complaint 2: I have been there numerous times, been told that someone will be in touch within 48 hours but have received no feedback whatsoever. All they do is cut off my account (I eventually stopped the debit order) to force me to pay notwithstanding refuting the account vehemently.<br> Complaint 3: Then to add insult to injury, today I go back to the branch, inform the staff that I am waiting for the person who assisted (I use the term loosely) me last time, just to be told 20 minutes later, that that person is going on lunch and sorry for me.<br> I'm at the end of my tether and am contemplating investing in a banner.<br>