oh sorry, I gave the wrong advice. I think there's another version of Elora (can't mention it). I don't know about this game bro, sorry, because I only played for a while and didn't play anymore
Of course, you can use the coins for anything in the game other than the weekly ones. or you can use it on the website in the "roll with yuan" section to gacha a lot of items
Idk, try using vpn or login in server 12
Note: don't enter/play in server 13 (new server) cuz I've also tried but can't login, always force close
hope it helps