So with the numbered achievements, they sometimes start at lower tiers but they are still labelled as the original tier. So when you got the filled wardrobe, there is a tier for 5, 10, 15 and 25 that you would get and it will still say "100" on the event. Same with the Shell Game. You actually got the tier for winning 5 games.

We are slowly working through and removing the numbers on the events, but you are getting the correct ones!