URGENT HELP NEEDED

i have been using apple id for 4 years now with no problems. tuesday morning while reading my emails i was kicked off i tried logging in again andit says my account is disabled. when i called apple support on tuesday morning the agent told me i am required to answer atleast one of the security questions. when i called back on wednesday i managed to remember the one answer however the agent could not find my phone in order to send me a verification code. today when i call back they say i need to answer 2 security questions. i still dont know why i was locked out of my account in the first place i still have my password so i dont understand why its locked. i need access to my account as i have already been unable to access this for 3 days and it seems that no one at apple support can assist me