I can't access my yahoo account, asking for code via mobile

Hello,

i would like to ask how can i access my yahoo mail? i have recovery email which is working, i know my password BUT when i try to log in to my account it shows that i need to enter some sort of code that they will send to my mobile number. However, the number that was saved in my yahoo is inactive for a very long time.

please help me solve my problem.

Thanks in advance.