Special Assistance - needs work!

Kulula being my preferred domestic airline, I have previously successfully booked special assistance (wheel chair) with no effort. However today I tried to do this again, 45 minutes on my phone trying to figure out how it's done, I'm told I need to fill in paperwork first. Took the better part of 15mins to get my email address correct. The email eventually arrived with no paperwork. All I need is a wheel chair now I need to have Doctors permissions and then some.