7 days policy for returned cellphone

26/10/15. I was given the wrong phone on new contract i was advised that i will received the LG beat phone when delivered it was LG leon. I advised deliver company about it they advised i need to call cell c back and they will have to come back for it. i did call Cell c and they said it will take 3 working days. to date no one has collected the phone and when i called the call centre after numerous of times they said someone will call me back they have to listen to the call. to date no one has call me back. a ref number : *** was given to me 02/11/15 advising Concept will call me back. No one had called me. I called again now ref number *** and was advised by Edmond that the sim is activated and someone will come fetch the phone. i must call after 7 days to check if the phone and sim is cancelled. i did not call the call centre to activate the sim on a 061 cell no, which is incorrect as my prepaid number supposed to be used on new phone with existing number. one can give me answers and when asked to speak to someone who can assist you have to wait..... Even when asked to speak to the agent whom i took the contract with, no one knows.