Stop Vodacom from harassing me please

Vodacom is the worst service provider ever. I am in a 4 year battle over a contract they refuse to cancel despite countless calls to their cancellation and legal departments. This contract is still not canceled due to their incompetence. I have phoned the ********** number numerous times trying to cancel a contract I opened 2011. They have sent me to lawyers and now have affected my credit score. I have had to pay two lump sum amounts before calling in to cancel the contract. Everytime I call I get told my account is in their legal department they need to lift the collection status on the account. I get asked to wait 7 working days for that collection status to be lifted. After the 7 working days I was told its not lifted yet, I must give the 24 hours. This has been a cycle from December 2016. I have contacted Vodacom ombudsman online over a year ago and still do not have a response. I have told my story to everyone that has contacted me regarding this contract to no avail. I have been told to go to Vodacom " walk into any of the shop " and ask for help one person suggested. "Go report at ICASA" said another. I was told that the sim card is deactivated but I still get an account charged on the data they send to the deactivated sim card, which I must add I took out of the tablet and destroyed. I also get charged for data for a failed and shady upgrade attempt. They promised a Huawei P9 lite 2017 but they sent me tbe 2015 model after promising me and assuring the that they are sending the 2017 model which I returned the same day the divered it 27 March 2017. I wish I had the money to pay their day light ******* money so that I can put an end to this bullying and harassment. I have be ha see over to VVM attorneys and have told my side of the story to them however they proceeded with the Credit bureau. Where and who to customers a d consumers talk to to get such issues resolved.