it seems that with the new award system I stopped receiving level upgrades!
My current level is 22 and I've got over 22000 XPs. My level stays the same for at least 3000 XPs. I thought that I'd get an upgrade after next 3000 XPs but it didn't happen.
You stay at level from 19,001 to 22,500 XP.
At 22,500 XP you shoul go to level 23 and you will need a further 3500 points to reach the next level after that.
If you are beyond 22500 XP but are still at level 22 then either there is a glitch or Duo has changed the rules.
Level Points Range. Points reqd to next level
22 19001 - 22500 3500
23 22501 - 26000 3500
24 26001 - 30000 4000