SOMY M4 AQUA FREEZE

I ordered a Sony M4 Aqua, waited for a month and received it end July 2015. <br> Phone lasted for a month, then it just froze.<br> Took it to Vodacom 4U Cape Gate and they sent it in to Miatland repair centre.<br> Phone came back 2 weeks later, software upgrade was done.<br> 3 days later phone froze again.<br> Took it back to Vodacom for repairs.<br> Consultant told me there is a problem with these phones and wont recommend it.<br> Again phone was booked in and sent to Maitland repair centre.<br> Received phone after a week or 2 and a week later phone froze again.<br> Took it back to Vodacom, the lady said it will just be booked in again and they cant refer to Sony.<br> Clearly not a software problem as same problem persist after 2 software upgrades.<br> What is the process to replace this phone as I am fed up with it.<br> Don't have it for 3 month and no joy with it.<br> Certainly they need to have a factory warranty to replace the unit that is clearly faulty.<br> Vodacom you need to address your repair policy on new phones.<br> <br> I hope I get a response and get this dam phone replaced.<br> <br> <br>