It's easy just follow the few step below.
Step 1. Click on the first picture "Mua"
Step 2. Fill in your player ID and select Zing Card as a payment method.
Step 3. Select the equivalent game card you have purchased. 20,000VND~1,000,000 VND.
Step 4. Enter Card No. and Pin to complete your recharge.
You have done the recharge, relog your game to refresh the in-game UC.
Should you have any inquiries please do contact us via the SEAGM live chat.