In the op its mentioned that "Any unclaimed rewards that were delivered to your mail in the last 2 weeks will be lost" unfortunately I lost some silver fighters that i'd evolved from bronze in the couple of days prior to the data loss. A lot of the skill points i got from them have gone to waste too since the fighters i used them on seem to have been recovered up to a point in time before i unlocked nodes on them. The skill points i didn't use are still there I think. And everything I opened from relics is still there its just those evolved fighters that disappeared. Could have been a lot worse though i guess.