Worst ISP ever!!!!

I cant get my head wrapped around how the biggest ISP in SA can be so useless, i mean i have a 24 month contract that should be out of the period by now but due to there skrew ups i THE CLIENT are suffering because apparently it is fine if they charge you over a grand a month for a 4 meg shaped line, they charge you for 4 different lines and yet every month when i do my normal complaint to them about it they take 2 weeks to get it back and i still have to pay a full month. So a lady from head office or some department helped me the first time and now i call the number and no one answers and i have email her a few time but still nothing. So i really wish they can do something to help there clients because i cant keep working like this. So please can someone usefull read this and come back to me because i have left several complaints and escalatetions but it does not seem you guys look at that, and this is why i am going the more public route so it can be seen to