You can refill via PaySolution. It supports many payment channels. Family Mart, Big C, Lotus and Online Banking to buy ours product, which charges 4.0% and fee per channel.
1) Go to "Refil"
2) Specify the amount of G in Paysbuy, then press the "Submit".
3) Choose form of payment. In this example, select the "Bill Payment > Other Bill" and fill out the form on the right.
If you want to pay at Family Mart. Please choose Tesco Lotus
4) The system will created the invoice for you. This can lead to immediate payment.
After payment You will receive G cash automatic in 5-10 minutes
5) When received G cash, You can buy products immediately.
If you do not receive G, please contact lower right corner of the website or contact fb.com/GGKeyStore