Worst purchase EVER online they advertise their pr...

Worst purchase EVER online they advertise their products as a 3rd party Seller on Amazon besides their own website and they list things they do not stock. The item I purchased from them was out of stock and they refused to refund my money but were trying to tell me I had to wait until they got more in. ARE YOU KIDDING ME??? Selling items you say you have but DO NOT HAVE AND REFUSING TO REFUND ME....That's internet fraud!