ok so I was playing last night and out of nowhere in the last game I played i randomly got xp would someone like to explain or has this happened to anyone else
why do you care?
free XP!

I got it this morning too. I’m not complaining though. 
couldn’t tell you. i haven’t seen an end of game credit screen in over two weeks.
Did you have a Double XP token during the first week AND hit the cap?
During the first few days, if you hit the cap and had Double XP tokens left, you wouldn’t earn XP but would lose a token.
I got a dozen last night. I deduce that they’re giving them back.