Project Rotation: Screened out, they don't want self employed
Media Review: Crashed half way through, so emailed them and got full credit despite not being able to complete the survey
Alot of the time I hear people using their hotel address or similar to get it but otherwise.. could be tricky. Is it a situation where you can't use LINE or similar? Otherwise I've heard of people using BIC SIM but it's a monthly thing - 【公式】BIC SIM|ビックカメラの格安SIM・格安スマホ
Been dozens of times to Japan and only once (most recent trip actually) was there a flight change. Always with JAL or Air NZ (when living in NZ). Haven't tried Qantas but perhaps I'll do my best to avoid it going by info on this post.