faulty product

I handed in my Ativ Tab 5 and the repair centre lost my device... the unit was the replaced with a dirty damaged 2nd hand unit... after complaining it gets replaced... then I get a down graded Asus product.<br> I am not happy as someone is not doing their job. Not even Samsung wants to help me<br> And I know that no one will help me because Samsung is domina ting and don't care... maybe if I get my attorney involved... something can and will happen