I tried to place an order 3 times in response to an unsolicited ad for 10% off and free shipping. After 20 min and 3 chats, I was told to proceed with the order even though it charged for shipping without the discount.
One operator said I'd only get the free shipping after I entered the card.
When I went back to the offer, it disappeared (now that they had my email for nonsensical ads). Instead, when I logged on, the prices had been increased markedly.
Sneaky stuff. Would stay away.