Coricraft furniture online - bad experience

Very bad experience for a first time buyer. They advertised product and said they had stock, paid for the piece of furniture and delivery only to get email after payment that order is in demand, have to wait for a shipment. Is this not false adverti*****t? When they fully know they don’t have stock and keep on selling and now have to wait for more than 10 days to get my money back. You expect such service from cheap furniture shops not such a group