Brillant chest of fortune's favor

Hello Staff,
i bought the 3 brillant chests with orbs of fortune’s favor about 1 week ago. after the count hitted 50 purchase i receveid 2 mail of missed selection for the refund of brillant chest 1 and 2. but the third chest seems still in pending, despite the count reaching 50 time several times in a week.
Thanks for your attention
best regards