Character not leveling up

[Burnt_Salad_PvZ]

I would have mastered party brainz today, but every time I get him to level 10 and go to the backyard to promote him, the level resets. Please fix because I can't level up any characters. It is so annoying and my rank plate won't go up because of this. I've basically mastered party brainz 5 times and the level just resets when I go back to the backyard to promote him. Please fix or I won't play the game, there is no point playing because I can't level up characters.

[thedxrklight]

I’ve had exactly the same problem!! Now maxed the peashooter three times on super elite... but every time I reach max it puts me back! 

[RMarcoe79]

We have had the exact same issue... we have leveled up our Fire Pea 3 times, Super Commando 3 times and Camo Ranger once in turf takeover... each time we went to backyard to promote the level reset... extremely frustrating!

[herbert0990]

Same mate bloody lose levels every fuckinf time

[moltengamer67]

Same and not even for naxing out anyone, i got super commando from elite lv 2 to elite lv 5 or 6 and got the damage upgrade played another match got agent pea untanked from lv 6 to 8 and when i went to the backyard to get a new quest because i completed 1 to destroy a zombie teleporter and my levels and quests went back like the match never happened but to my knowledge my coins went up like normal.