Forza 5 Reset Inself Proof Provided

on Forza Motorsport 5 I was driver level 460+ more than 13 million credits and lots of cars.
and it just reset me back to level 1 no cars and no credits.
my messages and paint designs remained there but level and credits and cars are all gone.
gamertag is j4ke xvx
proof that i was level 480+ with lots of cars on my youtube channel
video just of my car list : Forza 5 - What do you want me to do? + SHOUTOUT - YouTube

video of level i was way back Forza 5 : Infinite Credits, XP Boost, Max Affinity (AFK Method) - YouTube
skip to 0:40 - 0:41 of my level from a long time ago i was level 460 before i was reset

Please fix this and get me back my old save!

Do any system maintenance that you can, check the FAQ http://forums.forza.net/turn10_postst6805_Forza-Motorsport-5---Game-FAQ.aspx to see if theres anything in there that can help and if your still having problems post them to this thread. - http://forums.forza.net/turn10_postst6123_LOAD-FAILED-after-update--SOLVED.aspx