Vodacom is deceiving there clients with false advertising

Vodacom is lying to their clients, i was sold a package in December for a 5G 50MB home internet. Since i have started the contract i have only been getting 5MB speed. I have logged 3 tickets and now only to be told that i am outside the 50MG coverage by Dillon Canterbury, when i look at the map coverage it shows that i have 5G coverage up to 100MB. So Dillon is telling me i i am sharing 30 MB with everybody around me. Why would Vodacom sell me a product that they know i wont have coverage for and why is their map coverage different to the one we have access to. I got the black Friday special so they saying i can cancel the contract at no cost, but i must still pay for the accessories i received, why when i don't want to cancel, i just want to get the benefits that i am paying for. Why must i pay for 50MB speed when i only get 5 MB, why don't they offer me a lower installment. They then offer me another package costing R 300 a month more and still i have to pay for the accessories. What has happened to Vodacom, i have been with them for over 25 years and now they lying and deceiving there clients