Reset Stats

Hello, i started here 3 days ago, i made lv 13 two days ago, yesterday i logged in to find my self lv 1, someone told me master server is down, couple of hours later i logged in to find my self back to lv 13, since then i played till lv 33 , that was yesterday (lv 33) today i logged in to find my self lv 12 ! wtf ! o,o

all challenges completed are gone too =/

anyone else having this problem ?

is there anyway to save my lvl ?

Thanks in advance