After a successful transaction, you can get additional quota of up to 1GB/2 days and GoPay cashback voucher worth Rp500 – Rp100,000 (the voucher value you get will be random). Cashback voucher is valid until 14 days since you redeem it.
Access GoPay app via this link, click “Promo Terkini” (Latest Promo) or “Koin” (Coin).
Choose “Voucher→Punya Kode Promo→enter and redeem the voucher code.
Voucher can be used directly by clicking “Pakai” (Use) & get the GoPay cashback.