False advertising and reaping off customers

Very bad Company they false advertised a 30 piece duvet set that came with a blanket, after that they never delivered the blanket i called and asked and was tokd that it doesn't come with a blanket, i showed them that it is written in thier own website and they decided to lie and fool me saying thats why i received R150 discount.i than checked and saw that there was no discount and asked why did they not let me know. They than sent me a blanket only to reap me off and make a fool out of me by sending me a 1ply 3kg blanket of which the blanket that i was supposed to get that comed with a 30 piece is a 3ply 4kg blanket.