Worst Customer Service!!!

On the 28th of July I subscribed to Vumatel (worst mistake of my life), my account was debited on the same day and I was advised that someone would come through in 2 to 3 working days to do the installation. After countless follows up, I was advised that they decided to go do the installation in another area that is 10km away, and they would come through to the correct address in 2 to 3 working days. Exactly 2 months later, still nothing. My account was very promptly debited again on the 26th of August, I called to advise that I still don't have the service that I am being charged for and in fact no longer want it so the subscription should be cancelled and my money refunded, the gentleman I spoke to(Jacob) requested some documents and promised to escalate which he did and I received an email confirmation to this effect. I followed up on this refund and didn't receive a response but decided to wait knowing that a refund can take anything between 3-14 working days. Come the 26th of September, my account was debited again. I again contacted the call centre and spoke to Ferdie who advised that my query wasn't linked to my account even though I quoted my reference number(which makes no sense), anyhow he then promised to link the query and escalate it, the call disconnected while we were busy so I had to call AGAIN and spoke to Boinelo who was completely lost by the way, so needless to say that conversation was a complete waste of 1 hour of my life that I'm never getting back. All I want is for these ********** to cancel this so called subscription and refund my money as promptly as they stole it because making me pay for a service they are not providing me with, through no fault of my own, even after revoking permission for them to debit my account is precisely that, THEFT and *****! NB: even that 1 star is quite generous because wow!