Vodacom Durban Reps selling incorrect products

I have signed up for uncapped fibre at the end of March. Sifiso a rep consulted with me over watsapp and sent me voice notes selling me uncapped fibre and a 40gig free back up ****al of which I was told I can use during loadshedding for R399. After I signed the contract and the router was delivered to my home, I had endless problems having my sim card activated. Sifiso and his manager then realised that Sifiso had sold me an incorrect package of which is not R399 anymore. They just apologised for the mistake and sid he was not trained on the product and said that I now need to pay R599. I find that is unacceptable. I have been trying to contact Sifisi, his supervisor Theo and the supervisors manager Kreeson, whom all do not return calls nor do they respond to watsapps. The manager Kreeson had asked me to send him a watsapp 1 month ago and has still not even read the messages. Now I am sitting with only the 40gigs and a router with no fibre box installed because of how unprofessional vodacom is. This is a team from the Durban area, these are reps who sells incorrect products. What a shame it is to find such a big well known company to not be assistanting their clients. On watsapp its says Theo Vodacom, Leshique Consulting