Worst service provider in South Africa. ******* of note

After more than 6months of constant complaint, with Vodacom, their solutions department being as *********** as their complaints department, I'm still being billed an additional amount of R 249 on my contract. I have never activated anything and have only signed for R 549 to be deducted on my account. The only answer they have for me is the problem has been resolved, which is something they have been uttering since April 2017 and now we are entering September 2017 and still I'm sitting with the same problem.