Look in the top left corner, under your name. You'll see 2 little flags, 1 with a crown on it, one with XP on it. If the XP one is lit up green it means you're currently under a double xp bonus. You can click on it to see how much longer it will last. If you activate another xp bonus while you have one active, it will add the time, so it won't wasted by activating one when another is
It is different for me, if I already have xp for 1 day. All other XP like rewards XP that is applied afterwards is discarded. And after the 1 day XP I have no more XP at all. it should be placed in the inbox, if you need it you can activate it.
But that doesn't happen. 👎
that's why it's the system stupid that with a reward a 1 day and 500 xp are together to claim.
there was already a 1 day XP. But with the login reward, I got a 3 day XP. I thought I'd leave him alone. But after closing the screen, it was just thrown away. after the 1 day XP I had no more XP at all. 👎