I have received Microsoft account security code but it doesn’t work !!! help me please im losing my mind !

My account has been blocked like 3 months ago i had to fill a long painful form then submit it it had me going more than 10 times and it got worse by getting rejected each and every time ! after a month  finally I received a Microsoft account security code and ever since i kept trying to use it and it just keeps getting worse each and every time  ! what to do ? ? I need help i got almost all my contacts on that account !