I think i kno how 2 solve this problem, cuz the same thing happened 2 me and wat u have 2 do is that u should try ur date birth year, or if u put the last 4 #'s of ur phone then try that, cuz wat happened 2 me was tht i put a code on ma phone it was the last 4 numbers and i turned off the phone 4 a long time, lik almost 2 years, anyway so i turned it off rite and i 4got ma number so i called the company and asked if they could change the number and they did and tht also changed the code so tht means i could get in so yea tht's wat happened w/ me, so i wish u good luck w/ if this solution works xD !!!!!!!!!!!!!!