Vodacom call cell, worst service I have ever received,

I have been waiting for almost a month if not more, then a month since I took out a fiber contact, every time I call to find out what's happening with the sim card and unit, I get told that its they will have to get back to me no one has come back to me, every Time I call them I'm on hold for atleast 15 to 20 minutes before I even get through to some yet if you call sells the whole process doesn't even take 15 minutes