• About " Rainbow Gem"
    Fee/Point
    [iOS]
    You can use your credit card and iTunes card for In-app purchase.
    If you have any concern regarding the In-app purchase, please inquire to the Apple Inc.
     
    [Android]
    Payment method of Google Play
    You can use your Credit Card/Google Play Gift card for the In-app purchase.
    If you have any concern regarding the In-app purchase, please inquire to the Google Inc.
     

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