Bad service

I have app**** for a wifi connection contract with vodacom as seen advertised on social media I app**** online therefore thier agents called confirming my details ,taking and stating that I will get it delivered so now my issue is before the call I had an invoice sent to my email sating that I app**** for a router with 1mb day and 1mb night owl of which I app**** for uncapped wifi cost R399, I asked the agents they both told me I will get uncapped but during the terms and conditions reading the agent said something about top up, I aksed he tried to brush it off now when the second agent called I aksed her to email me in writting that I will receive uncapped wifi she said she Will after a call or I can call their customer care line they both gave me a number to call should I wish to cancel the contract within 14 days , I have not received it I want to cancel I tried to call no one is picking the other number they provided its no longer in use, I read feedback most people complain about bad network and I am going to use it for work, I tried to contact them on Facebook messenger the agent told me the deal has been discontinued so I need help canceling this before I get penalized .