The worst customer service experience of a lifetime.

So it has happened again. And we are back to square 1. So I contacted vodacom a while back to end my contract which had 4 months remaining and had to pay a fee in order to get my new contract/phone. I went in on the Saturday in August to pay the amount. And had the forms signed and sent by Friday afternoon before the Saturday that I went in to pay for the contract. Your guys have lazily/cluelessly credited my account instead of closing that contract. I got my new phone on the Monday. I did not know about the whole credit thing on my account until october when I started to get additional charges in which I call your customer services department only to be told that I will get an sms with a reference number and it will be resolved. I dont get contacted but instead get an sms stating it has been resolved, with me thinking and assured from this message that it is. I then proceed to carry on as normal only to find out in November that in being charged a big amount in which I call again and begin the process again, only to be told i will be contacted back and it will be resolved. December 2nd comes along and I get hit with a bill for my current contract ( which I signed for, and dont dispute), but also an excess amount for equipment fees etc that I'm told from the customer services person. How can you guys have the cheek and nerve to debit my account for an amount I didnt agree with? And also I was disputing this amount for sometime. Especially since the person who handled my account has totally messed it up. Also sitting on phone calls constantly for over 40min trying to get some sense or light on the situation. Everytime you need someone like a manager or senior they are not around or never contact you. Stop avoiding me!!! I have signed documents and proof of payments. I want answers......