Galaxy Tab faulty since March 2014!!

I purchased a Galacxy TAB 3 March 2014 from a mobile supplier on contract. Since the purchase date, I have had to take the tablet back for repairs 4 times for the same issue. The Tablet would go off by itself and would be unable to be truned back on. When I returned the Tablet for the 4th time on 20/02/2014, I informed the care centre that I did not want the same device back as the Tablet spent more time in their own repair store than in my posession. Lezl was the consultant that processed my request with a Manager's approval. This was 2 months ago and since then I have not received a single phone call, sms or email to tell me where my request or tablet is. I spoke to a Manager, Chris, at the care centre on 17/04/2014 who assured me that he would give me feedback within 2 hours, but he has not contacted me in almost a week now.<br> <br> At this point it feels as if I should open a case of theft as nobody at Samsung can tell me where my faulty tablet is or is even willing to even take accountability for the poor service.<br> <br> My current reference number is CS-***, but I also have 3 other numbers if anyone at Samsung cares to take a look.