Snatcher item delivered not as advertised

Placed an order for items based on the description on their site. The item was however not delivered as per the description on the site (order was missing a part which makes the item unusable for me). Queried with snatcher about the false advertising, after much back and forth, they offer free delivery on the next order - why on earth would I order again if they don't provide the products as per their adverti*****t??