Hm, after doing a daily quest, as a reward I get a promo for one hour for Gift-Wrapping set. It was saying I'd get a -99% discount, but I didn't. I got a -50% discount, althought it was still saying "-99%". I bought it for about ~1200 gold.
It wasn't showing in the market, it was just on the left side like other promos you get after finishing the daily quest.
And now I can see it in a promo section for 24 gold... Why did I spent those 1200 gold?! :( :(
But I like this set very much thou.