how many hours? I have about 10 hours of gameplay time, but 20 hours in total of having csgo open

Hey so I am winning a lot of pots and dice rolls and I have right now about 3400 go coins and i want to redeem some skins. But when I try to chat in the chat or redeem something it says:

Your steam profile must be public and you must own CS:GO to withdraw.
and
Your steam profile must be public and you must own CS:GO to speak in chat or send GoCoins.

Please help me.