How to top-up my phone credits at Indomaret?

Let's follow the tutorial below

1. Open the application, select "Buy Credit"
2. Select the nominal credit that you want
3. Select the payment method "Indomaret"
4. You will get a purchase code

When you arrive at Indomaret

1. Tell the cashier you want to make a payment
2. Mention "Purchase Code" written in the application
3. Complete payment

If the payment is successful, the credit will immediately enter your by.U number