I am trying to pair my headset with two different accounts

I was trying to pair my headset to my computer using two different accounts but it said that I had to use the same account on the website and vr. But the one I wanted to use on my vr was my main account so I had to make a new one. Because I forgot my email to my Facebook account and I lost my phone a couple months ago. And that had all my info so if I could get help finding my email for my. Facebook that would be great and could you guys fix having to need the same account to pair my vr to my computer 

thanks, Logan