Fortunejack is pretty popular and very legit site which has been working for more than 3 years as far as I can remember. Moreover your question is too diplomatic lol I didn't understand whether I should say yes or no. Lol they are definitely legit and not scam. If you still have experienced something like this feel free to open a thread in scam accusations to atleast aware other people about any such thing. But make sure you bring proper proofs of any such thing.
It's very easy to answer questions that are diplomatic because the answers would have to be presented same way. The OP is fully aware that fortune Jack is a very legitimate game. Let's forget the number of years it has stayed and focus on how it has proven itself to be trustworthy during this period of time that it has been available for gamblers.
This issue would definitely be resolved amicably,which I think it's only a matter of misunderstanding and does not really call for alarm. This has happened to someone I know and he discovered he was assumed to have multiple accounts because he was suspected to have changes with his IP address. But, issue was solved in few days.