Tablet contract renwal - contract promised in May 2017 - still waiting - customer service appalling

Phoned by Mtn to upgrade tablet contract. Was promised "my phone" contract from 1 June 2017 for R89 p.m. Never happened, contract was never provided. Instead was put on a cellphone contract and had the subscription increased to R139 p.m. Have been complaining ever since by phone, at the Mtn Walmer Park branch, on Facebook - I have spoken to lots of folk, some helpful but stymied by Mtn red tape - but mostly to folks who didn't know what they were talking about or were just plain rude - like the idiot who tried to bully me into thinking that he knew what was best for my "phone". Now trying to cancel this expensive, worthless contract because I have given up on Mtn - *********** and uninterested in their customers.