Customer disadvantaged

I have upgraded my cellphone through Nashua Mobile Aug/Sept 2013 to the Samsung S4 (which has really been a great phone) and 1 of the reasons I chose the phone is because of the 2 year free repair from Samsung.<br> <br> In the meantime I was moved over to Vodacom..who's fault was that? Not mine!<br> <br> Now Samsung does not want to fix my screen because the date when the handset was manufactured has expired already (who would have known that!). They require proof of my upgrade.. and guess what Nashua Mobile does not exist!!<br> <br> Vodacom refers me back to Nashua Mobile with numbers that does not exist and email addresses where there is NO response. Sure as a Vodacom client then they would be able to assist with any proof instead of shifting the blame. <br> <br> Next month the gaurentee will really expire and guess who will be disadvantaged????<br> <br> So who ever decides that I am a worthy client of them... please assist?