İ have 85 mastery at this game and they didnt give my credits from mastery

(25/11/2020) ON 25 CHAOS CHEST PACK DAY PACK

I was using 30lvl knight

i want my credits back please(200 credits) i thought it was a game crash and i exited the game and started again but it didnt solved
so i completed more masteries and take 100 credits more and -aveda kadevra- my credits are didnt come

so i want my credits or 25 chaos chest please just solve my problem