Support team doesnt reply to emails

After submitting my grievance against the sony team for not assisting me with regards to the problem of the retail demo on my xperia z1 compact, I got an email from Melissa Warren at the customer service department asking me a whole lot of questions and i had people phoning me and telling me to do all sorts of things to get the demo removed, after telling them that i have tried all those things, and still no happiness. Melissa then said she is sending the details to the device testers on 3 February 2015 and there is no report or any response from her since. I have sent her emails asking what is going on, and she doesnt reply.<br> <br> What am i supposed to do now? I still have this stupid retail demo on my phone which deletes all my pictures and files when it is plugged in to charge.<br> <br> Can someone at Sony please get this problem sorted?