Locked Account

i have a dropbox account link with my yahoo mail, and i forgot the mail password and after few tries the completely lock my account as i don't have any recovery in it, then when i try to login to my dropbox account the told me that password expired and we sent you the code in the mail which I don't have access to so i am enable to receive the code and this matter is like more then 1 year ago but today i try to sign in my yahoo.mail the somehow connect my yahoo mail to my gmail account and now i have access to my yahoo account but i can't receive the code from dropbox...so kindly help me out with it...Thanks dropbox team