Bassas Hardware, sifted or unsifted

I am absolutely disappointed with Bassas Hardware Durban, I purchased Plaster sand from them and the quality was absolutely pathetic. I delt with one of their workers named DeAndre and she assisted me with my order, I spent over R4000 and I'm not happy. The Plaster sand is dirty and has stones in it, Only today when I called to complain today about it was I informed that I didn't ask for sifted Plaster sand so the sand I got Plaster sand that was unsifted, apparently I had to ask for sifted sand because Plaster sand is sold unsifted. I spoke to many hardwares and they never ever asked me if I wanted sifted or unsifted Plaster sand. I'm really disappointed because I'm sure after they were badly effected by the recent looting they would ensure their clients are happy and do their best to retain a client. Well this was my first and will be my last purchase