To redeem the voucher we were first sent back to Customer Service. After that, we were asked to fill in an online form with personal information, which we already provided twice when we made the appointment.
We waited about an hour for registration and administration of others to be completed. The test itself took only about 2 min.
After that, we had to wait again for about 5 - 10m, for the Traveloka voucher to be confirmed.
Staf was friendly and helpful, but the admin process was tedious, compared to other testing facilities.