One of two things is happening here:
One: League registration isn’t closed. We put people on teams at random while registration is open, then when it closes we go back and honor all the teammate requests. If it’s before registration has closed, don’t worry about it and we’ll get you on the same team with your requested teammates after registration closes.
Two: Registration has passed, you got a welcome email, and you’re not on the same team. In this case the request either didn’t go through or we missed it. Email us and we’ll get everything squared away.