I’ve been called in a few times and never had to do it.
First 3 times I post poned it - just needed to write in an exemption letter with a legitimate excuse signed by someone with authority.
- My excuse was always Uni Exams
- Small business owners and financial hardships are also valid
If you do end up getting it postponed, expect a call up in the near future within 6 months generally depending how long you post pone it.
My fourth and final call out I also got out of. I attended the first day. We were told some would be expected to serve for some time as they were quite large cases beginning that day. Then they mentioned the part about old jury halls and bad acoustics and anyone with a hearing impairment to meet after the introduction/video.
I did this and got taken to a room where I basically filled out a form saying I was deaf in one ear and could have trouble hearing and that I might miss important information. Signed it, the staff guy signed it and I went home.
This part might actually only work if you are deaf in one ear but I had no documentation of proof and no folow up regarding this.