Poor service

I recieved a call from vodacom on Monday 6 March 2015. they said they see on the system i am using alot of data. So, they tried to sell me a 1gig simcard with a wifi router for free. I accepted and said i need to speak to my wife first and we realized that we wont be able to afford it. so i called the after sales number and spoke to someone there to cancel and not let them send it. The lady said that it is not at the place to be sent yet and she will make sure it is not sent and cancelled. My wife called me this week Monday saying that the package has come and it is vodacom, the parcel i have cancelled. now i want to send it back. someone called me from there and while i was explaining, she put the phone down in my ear. now i cannot get hold of anyone at vodacom. I DONT want this thing and i refuse to pay for something i dont want.