Thank you, Diamond-Lim, for your answer, but: my problem is NOT "no Milestone Badge shown", but WRONG (= old) Milestone Badge shown!! Any suggestions how to solve this? (Game ID ID 13206421005)

I reached level 2000, played all 5 milestone-games (on PC) and won the badge - it was displayed on the screen. Yeah! Later, I played on mobile - and the badge was gone, I was back to 500. Back to PC: Back to 500 as well!?!? Please, I want my 2000-badge back!!! Thanks.

I reached level 2000, played all 5 milestone-games (on PC) and won the badge - it was displayed on the screen. Yeah! Later, I played on mobile - and the badge was gone, I was back to 500. Back to PC: Back to 500 as well!! Please, I want my 2000-badge back!!! Thanks.