VODACOM **********LY UPGRADED MY LINE 2 MONTHS BEFORE EXPIRATION DATE!!!

Beware Upgrade ***** with Vodacom!!! My April 2018 invoice was almost double the amount that I have been paying for the past 20 months. I called Vodacom to query this and was initially told that it was a billing error and they could either credit it against my account or refund me. I requested a refund which I never received but received multiple SMS’s stating that my query was resolved ?. I called them again to inquire about these RESOLVED SMS’s, and then I was told that in fact there was no error but the billing change was due to an upgrade on my line which was done in March 2018. This was news to me because I didn’t apply for any upgrade with Vodacom instead I declined a telesales offer in March, and have been waiting for the 15th of May 2018 to cancel the contract. Upon disputing this ********** upgrade I had to submit an affidavit, ID copy and signatures to the ***** department and then it became a waiting game. I’m livid because I have been passed from pillar to post without a clear indication of when this will be resolved. I can’t cancel the contract now because Vodacom has **********ly upgraded the line and their system now reflects that cancellation is in 2020. WHY IS IT THAT I GET *****ED OVER AND IT STILL BECOMES MY PROBLEM?