Recommended for first time user iREAP POS
Open iReap Pro Apps with your device,
Click Subscribe > choose "Google Play Store" and click Continue.
Choose subscription type (1,3,6 or 12 Month)
Make sure the payment method is correct (if it is wrong then Drop down the payment method and choose to the prepaid phone number name provider)
Enter your google password > click confirm (once your click confirm, and your phone balance is enough, then you have already buy the iReap pro voucher)