How to top up Honor of Heirs in-game diamond using Google Play Gift card purchased in SEAGM?

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Honor of Heirs: Assemble the mightiest medieval Order and dominate the land of Avalon! Embark on an adventure to create the most epic hero tale!

Note: Google play gift card sold by SEAGM is a region-locked product. Please ensure the purchase gift card region is the same as your registered google account.

Step 1: Once completed the purchase from SEAGM, kindly retrieve your game card code in "My Cards".

Step 2: Install and start the application then tap "Mall" and the ( + ) icon beside the diamond, then choose your preferred diamond amount.

Step 3: Tap "Redeem code" to enter the code you purchased then click "Redeem".