Why did I get Rewards for playing different Game modes

[Sup3rGam3r1100]

When I logged onto ob Glacier I got legendary keys and idk why? Also if there is a way can you get those rewards back?

 

[IGotRqkt_]

Obglacier and obvulcan are the same with keys thats normal you buyed on vulcan keys if you then go to glacier you get it there nothing weird about it

 

[Sup3rGam3r1100]

Oohh thank you

 

[vcqx]

if you have bought a rank or keys on one oneblock like vulcan you will get the rewards on the other glacier