Indiegala trade section problem?

Anyone here tried to use trade section at Indiegala? I'm stuck at "Select up to 4 games * STEP 4: Search the games you wish to receive in exchange of your game and then click Select."
After I've searched a game and clicked select it doesn't add to the list. Anyone here have same issues? I asked at indiegala chat and some people said indiegala is no longer allowing non Indiegala keys, some says that they do. After all I got two links to Indiegala support that are completely oposed O.O
http://support.indiegala.com/customer/en/portal/articles/2129391-non-guaranteed-trades
http://support.indiegala.com/customer/en/portal/articles/2045269-what-games-can-i-trade-