Sometimes the Google Play server may be a bit overloaded, causing your in-app purchases buttons to be in gray. If the in-app purchases buttons are in gray, you can tap on the button to see details about what might have gone wrong. You may need to:- Wait a little while and try again later, because the servers may have been too busy to process your order in a timely manner
– Update your Clash of Kings application to the latest version- If you are still unable to resolve the problem, please double-check whether the Google account you are using been set up a valid payment method. – If you have added multiple Google accounts to your device, please note that Google Store Store always charges from the account at the top by default. – If your primary payment method is credit card, you may also want to check with your credit card company whether your card has any restrictions on in-app or online purchases.
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Game Guide for Clash of Kings