Vodacom bad service

I recently agreed to the additional 5G Price Plan Top-Up but declined the router yet Vodacom has added the cost of the router to my invoice. I`ve had to make numerous calls to Vodacom and keep on getting assurances that my issues has been resolved (whatever that means!!!) Two weeks ago a lady from the Rewards department call me and assured me that it would take 2 to 5 days to complete the investigation . Obviously I`ve had to call them again, myself, as no-one got back to me with any feedback. Even when I called the rewards department I had to relay my issue from the beginning and this time she just put me on hold, forever, ostensibly to ask some higher authority as to the way forward with my issue. As a long time loyal customer I`m very disappointed by the shoddy customer treatment I`ve received from Vodacom.