one
Sign in with your Apple ID, or click Sign Up if you don't have one.
two
After login, choose to recharge, fill in the amount you want to recharge,ios only allows you to choose a fixed amount, if you do not use up the next time you can continue to use, the rest of the money is saved in your account.
three
Follow the steps to enter your information to top up.
four
Go back to the game and buy the number of points you want.