MWEB Voip Rip-off

I am a business client of MWEB for close to 20 years. I recently subscribed to MWeb's Voip service and proceeded to purchase their Voip phone (they only have 1 version of a cheap Yealink corded phone) and app**** to have my Telkom line ported to Voip. I was told that during the time needed to port my line from Telkom to Mweb, I would be given a temporary 087.... number that would change to my present Telkom landline number once the porting process was completed (+/- 30 days). Through a third party I was then informed that even after porting the Telkom line from Telkom to MWeb outgoing calls would still display the 087... number on the display of the phone I called, hence making it look like I was phoning from a call centre. I immediately cancelled the Voip application I had placed with MWeb (within 2 days of my application). While MWeb agreed to this cancellation and also collected the phone I had bought for R 849.00, the Voip subscription will be charged to my account for another 2 months. So please be vary when talking to MWeb about Voip and ask all the right questions.