Instruct: Classify a given review as either positive or negative.
Query: wrong item

Buyer beware!They listed 20 -Pack set,which they don't carry,and send you 16-Pack instead.Now I need waist my time to return this item in order toget my money back.Customer service awful - they just don't care.If it's yourmistake - show your class, just send me missing 4 bits!No,they don't wantto do it.What a shame.