Nostalrius Begins - Quality wow vanilla realm (1.12)

So, I played on nostalrius for a few months. Hearing that elysium will be having our characters transferred to it . atleast to my understanding of the announcement, had me super excited. With that being said, I am unsure of the game login info that I have created, being it has been close to a year or so now. Is there any way for me to go about getting my info back?

I'm pretty sure you will have a way to recover it with email