Device: Samsung Galaxy J1

Recently, I was looking at the free sample skins, and some of the skin packs weren't loading due to a slow connection speed. I tapped the unlock button on the legacy skin pack... and it unlocked for free. I was able to select skins from the pack and use them on multiplayer and realms. I have never bought coins. It is entirely likely that I could have acquired other things too, but i didn't.

Ps. I don't mind if the pack is removed from my account.