Login code sms not recieved

Hello,

I had applied two factor authentication in my fb account. Now when i login it ask for login code but i didnt recieve any text code on my phone. This prob arised since 13 march 2019 night. I had my phone but couldnt recieve code and der is no other known device i had ever login. How can i get the approval code . Is der any solution. I need it urgently. I dont had got access to mail id associated with fb account but had got access to my additional mail id.