How do you get the correct information from Vodacom?

I have come to the end of my contract and due to the lack of connectivity in the area, wanted to port to a better service provider. SO I was told that my contract finished on 27 June and called to terminate my contract. I then arranged to port to another provider. Because they were lax I had to then change to pay as you go and rica my sim. I went in but was told I had to do it the next day! I went back the next day and was told to do it over the phone! Then they called and I was told that my contract expires at the end of July! Now I really don't know what is going on and who is telling the truth or what to do! Today I get a call to upgrade my contract??? And that Vodacom have improved their service = how am I to know if they have??