Wow, lucky to buy tickets at Traveloka. No need to queue. No need to cash. No need to bla bli blu. The price difference is definitely cheaper. What is clear is that there is a time limit for redemption at 15.30, but because we were hungry, we ate first at the food court (after confirming with the officer there first) and we were still able to enter the gate at 16.00 yeayy!