I have two important suggestions.
1. Please add a looked time for purchased tix, Maybe 1-2 weeks. In this time the purchasing Player CANNOT sell his tix ingame but can decide to keep his tix or to steam refund his real Money. That should prefend that steam refund scammer can make their dirty play.
2. Please make it possible that we can SEE the confirmed items/pets with the stats before we finish the trade. The most item scammer switch items or pets really fast before they confirm and until now we have no Chance to check the items AFTER confirming.
This two changes will save many trustworth and regular Players for being scammed.