Hey Guys,
Just sent my questions to CaptainC.
I got my letter from AMSA. I contacted them several times, until they explained that:
1) They take a judgement on the level of education you have: I got advanced diploma (in the letter)
2) They judge how much years you have. The letter stated they judge me for 7 years. Nobody from AMSA actually explained how is this time calculated, despite countless emails by me and my immigration agent. My guess is they have no idea, and are just guessing for each separate case. I got more than I expected, so I think even if you are on separate contracts ( and not on a permanent) you will get the converted time (and not only the years of sea time).
Please, anybody claiming points for work experience - have you been requested by DIBP, to provide supporting documents for the claimed sea time, or the letter from AMSA is sufficient?
If requested, please write which documents specifically.