Very upset client

I want a refund on my vumatel account.I made a payment on the 4th or 5gh of May and was phoned afterwards for I stallion...however the address was wrong but they corrected it and was suppose to come out the Saturday or Monday.. I cancelled my Dstv to join this so called Glorious wifi company... Just to find out they don't know how to assist their customers... I want my installion cancelled and my R500 paid back to me so I can reconnect my Dstv... Everytime I phoned or sent a message its a total different story.. I'm beyond be*** for this service...im also working with customers and this his not how u treat a customer ***/ ***