I wouldn’t say false advertisement.
If they said “free 30 tier event” and gave us 15 tiers then it would be false. We got a 30 tier event, with cosmetics available for purchase surrounding the subject of the event.
HCS skins are pretty straight forward with what you get. I dunno why there’d be any confusion there. Short of your kid getting on your account and buying everything he sees because the owner doesn’t have any floodgates on purchase confirmations, I don’t see why anyone would be pursuing a refund for a single item.
I do think that the items and packs need to be a bit clearer with what they’re trying to sell though, misreading (rather than lack of info) some things as a result of subpar UI is kind of unexpected in 2021.
Can you point out a very specific example of what you think is false advertisement? And I mean specific.