Contract still open after early settlement

Called Vodacom to request an early settlement quote for my contract on June 26th 2015. Was given the quote, paid, filled in required documentation and sent email to [Email Removed] on the same day. The email bounced twice, I then called the cancellations department and was advised to email my documents to [Email Removed] and informed that my contract would be cancelled within 72 hours later. I made a follow up call on the week June 30th and was informed the contract would be cancelled. On July 8th I received my July statement from Vodacom and realised that I had been billed for that contract despite having settled it and sent through the required documentation. I sent an email to the retentions department (ref: EC-0WEX-2PXCQ4) and also called Vodacom the morning of the 9th. the consultant i spoke to informed me that he was sending an email to Njongo Mnyani and told me to expect a call from him before the day's end. It's now July 10th, I had to call Vodacom again to try to get to the bottom of things and the *********** consultants just sent me from pillar to post. Can someone please do their job! This is absurd