PROOF OF PURCHASE/CONTRACT

I don't even know where to start!!! I need a proof of purchase/or my contract to show Samsung in order for them to repair my phone under warranty. I have contacted Vodacom a total of 6 times, that is after going to 2 stores. No one can help me. Because I upgraded over the phone, I never received a contract, and now to get one is an absolute nightmare!!! The last straw was someone calling me back on behalf of the managers as they are too busy. I just need to prove to samsung that I am paying off my phone with Vodacom - I do not understand what is so difficult??? I have been told 24hrs, I have been told 48hrs, I have been told that my \contract\" is sitting in a warehouse which will take 14 working days to go and fetch??? A warehouse??? really??? I have been told that they are emailing me as we speak and still I have nothing????? What is going on? surely I am not the only person in the whole of SA to ask for this? My warranty expires in 10 days - if I do not get my proof of purchase by then I will cancel my debit order because clearly I do not have a contract with Vodacom if it is so difficult to find it???? I am paying monthly for something???"