Sellers with excuses.

I've been buying & selling off this site for a while, but lately when things go wrong, support is no help, like today, asked a seller for some discount, they complain that their stuff is already cheap & I must look other places, I went for the buy anyway on the normal price, suddenly get a message the order is canceled with all the excuses under the sun & yaga only defends the seller. Sellers want the price, but as soon as you order they have excuses.