When I wanted to top up the voucher, an error was informed by one of the system staff and told to wait a moment. a few minutes later another staff informed me with a jutek face if there was no collaboration with Traveloka, and I said it was impossible if there was no collaboration but I can buy a top up voucher at Traveloka. The first staff immediately said wait a moment ... he captured the QR voucher and he called it into his office, not long after he came out still on the phone and was probably directed by his boss to check the system ... voucher. Maybe in the future staff need to be trained on top up vouchers through Traveloka