Hi there. Yes, my visa approval didn't come till after my scheduled departure. I just no-showed for the flight and extended my hotel stay a few days at a time. Luckily I was able to apply for a refund of the return portion of the flight and it came a few weeks later. Once my DTV got approved, I just booked a bus ticket to depart the next day.
Do you mind sharing what day you submitted and what day yiu got the approval? And did you have to extend your Cambodia visa? That's what I'm worried about. If I don't receive it by Friday, I'll have to go ahead and leave Cambodia cuz I'm out of days.