What you are supposed to get is a code that gives you one set of tradeable/marketable mint skins for the safe you were featured in. If i'm looking correctly, you did get into community safe nine and should have gotten one of those codes already.

https://psteamcommunity.yuanyoumao.com/workshop/discussions/-1/360671727322470014/?appid=218620&ctp=3 This was the dev's post about community skin creator rewards a long time ago and I don't really think I have heard anything since then.