Well...you lost the full value of an Me262 in perks (according to your math). The only way to do that is Crashing, getting shot down or Discoing from the game.
You've got one recorded death in a 262 and no discos recorded for fighters so if the kill death ain't it, then you must have crashed one 262 or you could in error about having 350 perks to start with.
Blooz , I did not get shot down or crash a 262 on the night that i lost the perks. I know how many perks I had when I decided to start upping Duce's. I was hoping for a little insight from a HTC employee , but that doesnt look to be in the cards here so im over it. My thought is that when the game minimized itself that the game registered a crash if that is even possible and would be a bug.
you can feel free to think that I either cannot do 1st grade Mathematics,have Alzhiemer's or am trolling.
This wouldnt be the 1st time that something random happned to my account that HTC had no explanation for either.