Poor Quality of Costly Weaves

I bought a weave 4 years ago which the quality was stunning. There was no shedding and no tangling.<br> In December 2014 I bought another brizlian weave of R3000and it shedded and tangled thought I did some wrong so I went back and bought again for R5000 the same thing happened. I have been weaving my hair for years and I know the different qualities. At this price its a total rip off.<br>