Hi everyone, the last church service I watched online thanks…

Hi everyone, the last church service I watched online thanks to this quarantine used the story of Jesus and Nicodemus in John 3.
What stood out to me, and I’m not sure why it hasn’t before, is that in verse 13 Jesus says that no one has ascended into heaven except the one who descended from heaven.
In light of that how do we view Elijah’s ascension? If he didn’t ascend to heaven then where?