Ok sorry to hear this. You need to try new browser and log-in possibly fresh. Or clear your cache and cookies. Then click on the treasure. Then start a quest.
VPN or multiple / previous game acccounts may conflict.
You need to launch the game from bananatic.
You may be sent the skin up to 48 hours, but ensure you have smoothly registered to the game and your Quest approved.
Log a Support Ticket if it hasn't arrived. and check spam folder.
RE: cant claim free steam game from shop map - 28.05.2017, 13:24