Cell C "selling" service that is NOT working

I have 1000 minutes monthly on WiFi Calling, not that this would help as I am struggling for the past 3 months already for Cell C to sort out their systems so that I can actually use these. I logged a technical fault for this 3 months ago and still have no luck using this service. Stay away from this as far as possible, nobody gets back to you with a proper answer and the problem also does not get resolved. To top it all you speak to "technical" people who are guessing the cause of the problem, some of them even tell you to increase your monthly bill limit so you land up having a higher monthly bill.

I am failing to see how they can advertise this as a service if it is not usable and their technical department clearly doesn't know how to resolve this.........