Hi Harry. I'd love to see discussion on PlexCoin on here too. I got into reading about Cryptocurrency because of a Facebook post about PlexCoin. I can help with a couple of the questions, although at this point you may not need these answers anymore...
No, they do not have a contract with Visa, and since your post have removed the VISA logo from their cards.
No one knows anything about the team except that it is theoretically 53 people all over the world working on the platform.
From the posts on Facebook MANY people have requested a refund of their initial investment and have been ignored by whoever is running the account. They have had problem after problem with their Pre-Pre-Sale, from not being able to process credit card transactions, to Paypal being an option, then not being an option, to their web host shutting them down because they don't allow ICOs so they had to find a new host in a hurry.
Not all of Canada shut them down, Quebec sent out a general warning and has blocked them from operating in the province. You are also not supposed to buy in if you are from the United States. However, I clicked the "I verify I am not from the Unites States or Quebec" acknowledgement and it did nothing to stop my transaction, so they aren't trying very hard to keep us out.
At the end of the day, I threw about $25 at it just to see what happens. But I'm perfectly willing to lose $25. Can't see how anyone is putting money they can't afford into it at this point. Very buyer beware.
Best of luck to you! Hope it all works out. I know I at least am happy to discuss this with you, even if no one else is. haha.
Looks like it was a flop, i went with my gut and declined seems i made the right choice. I have howevr just stuck a few quid on travel coin, love the concept.