Yeah, you've posted in the right forum, I think...
I'm surprised that your instructor didn't suggest this. Diver Alert Network was the first to offer Divers Insurance, and the only source for a long time. Many personal and group policies do not cover outside of the US, or may exclude diving injuries. Or even if your personal coverage does cover you diving, outside of the US, foreign medical operators and chambers may require you to pay for treatment before you receive it, then collect reimbursements later, while they all recognize DAN, and are less likely to require a depost.
DAN is an excellent non-profit organization, and even if I got my insurance elsewhere, I'd be a DAN member. Their site is down at the moment, but look at this later:
www.diversalertnetwork.org/insurance
Or call them tomorrow: 800-446-2671. I've called in on their Emergency number: 919-684-8111 - 27/7 collect from anywhere in the world, and talked to the doctors at times about whether I needed to seek treatment for problems. As a member, I can go to their Accident & Fatalities Annual Reports and read about how others got hurt, to try to prevent my own injuries.
Diving injuries are rare, but they happen. One young fellow incurred an "Unexpected Hit" on a boat I was on in Cozumel last Januaury - just 3 days after joining DAN and buying insurance. Here's a link to his story...
http://www.singledivers.com/surfaceinterval/index.php?showtopic=441&hl=todd
I thought he was a hypochondriac at the time, but requested the O2 he wanted for him, then escorted him to the ambulance, before I went back to diving. After we got back to our hotel, I rinsed and packed his gear and mine {"Where is his dive buddy?!"} and asked about him, so I could get his gear to him. "Still in the chamber!" Oh... :11:
Yeah, get it, before you leave...