It takes a lot for me to post something bad about anyone. I have NEVER done it before.
This was the worst dive operation I have ever seen in my life. First off, they never asked for my C card. Secondly, the crew including the dive masters, never stopped smoking cigarettes on the dive boat the whole trip out and back.
A heavy woman was having a hard time getting down on the first dive. I decided to go up and help her, and let her equalize at her own pace with me just showing her to relax and come up a bit, and so forth, until she could get down. The divemaster swam to me, and underwater " asked me if I was having trouble" when I said no, he pointed for me to leave her, and made her abort the dive. I am not kidding. She didn't get to dive just because he wasn't patient enough to wait for her to come down.
I could go on and on.
I would have to look in my dive log book to see who signed me off to know their names. But I hate to say the ones you named do sound right. They were Americans. Blondes. Big boat. About 22 divers. I will never use them again.