Hi J8k0092! Thank you for posting your concern about the silver caps you've seen in the game. If you're referring to clan coins, you can earn them by participating in the Clan League daily base on your contribution. Clan coins can be used to buy items in the Clan Shop by going to Clan League > Clan Shop.
I hope I was able to help you with this matter. If you have more questions or any suggestions, please send us a message at perfectswing@perfectswing@freshdesk.com.
Have a nice day!
J8k0092