A ridiculous and baffling story...

Since it was an important schedule, I completed my KTX reservations and Seoul accommodation about a month ago..
Yesterday was the day of the trip, so I was taking a taxi to the station..
I didn't get a KTX departure alarm, so I checked the Korail app just in case..
Gasp..
It showed that there were no reservations for either the upward or downward lines..
Sigh..
I kept refreshing the Korail app inside the taxi, and I finally managed to snag one ticket just 10 minutes before departure and made it up to the station..
Why did this happen? I thought about it..
When you reserve a ticket, it doesn't go straight to the payment screen; you have to click "Pay" separately... I must have just finished the reservation and mistakenly moved on without paying, so the reservation was canceled..
I feel like it used to go straight to payment before the system integration.. lol
Anyway, I kept refreshing for my return trip as well and managed to grab a seat for my desired time..
I almost lost about 300,000–400,000 KRW on my schedule and accommodation.. yikes