Thanks Art_in_FL, I think I'm going to take your advice and return it for a money back. I don't care for a replacement, just a refund. I think I'll stick with poncho liners fir now and my WM bag for everything else.
I would take it up with the company politely but firmly. If they fail to take care of it in a reasonable manner, assuming you make the purchase with a credit card, you may have some extra leverage.
Contact your credit card company and explain the situation. Several times I have had money refunded.