Fantaman
You should be asking what your supervising officer and his/her supervisors are doing about it. I can only speak for the Navy, but if a lad/lass had come to me out of pocket by as much as a tenner I'd have been pushing it up the chain, hard. If my CO had found out I'd ignored it/done nothing, it'd be his office, my hat, no coffee.
Officers really should not be letting the airships get away with this, and by now I'd have been round all my team positively checking that their pay etc was in order.