Really Woot!
I just bought this a few days ago for $19.99 
Me too. But I was refunded automatically by woot the $2 difference. Also check local grocery store Ldly which had same exact 6 bottle for $6.99 and quality was about the same. Much cheaper @ $14 than paying $18 here.
I eventually received the difference also. The price might not always be the cheapest but Woot customer service is great.