Talk:Account Recovery/@comment-26598727-20160712131947/@comment-26137249-20160713105852

they are asking you to give purchase history details. if you are using android then go to your email it will be like GPA. 4digit - 4 digit - 4 digit - 5 digit (example GPA.1234-1234-1234-12345).

for ios user check on your apple id to check the purchase history.