I'm a seller on Etsy but I do purchase items that are unusual. . . .well. . . I put an item in my shopping cart last night and let it sit overnight as I was deciding if I wanted to purchase it. So today, the seller offered me a discount code for this item. When I went to apply it. . . the item in the cart disappeared. . . . . . .so I started over again . . .and it did the same thing. GONE. . . . . I can buy it with the "BUY IT NOW" option, but I can't get the discount. Anybody else have issues with this.?
I would suggest cleaning out cache and cookies. Reboot computer. You might have something impinging.
Is there only one item? IF multiples it could possibly be a proble with someone else buying at the same time.
Has the seller altered the listing? If so then you may need to put the item back into your cart.