Lost game progress and can’t get it back

Hi guys I’ve been playing apex since about season three, I’ve spent lots of money and made lots of progress. Today I saw that my account got unlinked from my Xbox I go to sign back in and it completely replaces my old account with a new one. I try and sign in to my EA account with my Xbox. And it says I cant and to try again later. How do I fix my issue and or contact EA support for them to help me. Please I would like some answers or suggestions. 

I have tried to change my password and use other options to go in. It says that account doesn’t exsist. Along with this I contacted EA emails and directed me here I tried there twitter but they didn’t respond or help there.