How to know that I own that license

I recently baught a server from my ISP and i asked them to provide me DA lifetime license. They baught for me and I have paid (though they have earned a lot of profit from me in DA anyways.. both are happy). NOw How do I make sure that the license is really mine ?
in licensing section I can see my name there but still i want configure and also I donno which email address is registered with the name !

If you can login to DirectAdmin's client area and see your license there, then you should have a pretty good idea that it's yours.