Shocking Customer Service

On the 2nd week of July 2019 I app**** for Vodacom Fibre as well as Vodacom IP Talk Solution. The latter comes with Telephone Purchase (Yealink W52P). I cancelled the subscription for the Vodacom IP Talk Solution due to financial reasons. The cancellation was done before connection of the 2 services. I have made numerous phone calls and emails and there's absolutely no follow-through. I have requested for the device to be picked up as it is still in the same condition as it was delivered. It's a over a month already, no communication, no feedback and no action. On applying they were quick to get a sale and now there's no after sale service. Even with the Fibre it took them over 2 weeks to activate it.