Need help regarding my zombie level.

A few days ago, i tried around with the zombie trainer which also has the xp changer, after setting my level to different numbers, i decided to go back to my normal level and just level myself, since otherwise i cant see the point in playing (I love leveling XD).

But now the actual issue: I set my level back to 19, but when loading into a match, it shows me as level 71. When i leave the game, its back to 19 and gives me the xp normally. I tried leveling up and played for hours to level 33 but ingame im still shown as level 71. Also, i cant progress the calling cards for the levels anymore. In the first card it still shows me as 19/39

Any help to fix that is much appreciated.

Still need help.