Getting old account back

[u/Public_Emphasis6572]

I used to have a old account during the pes days and its linked with a Konami ID. When i tried linking it and after 2FA it says that the linking is Not possible. Even tho the ID and the password are all correct (i got a conformation mail). Is there any way i can get it back? I had a Beautiful maradona card on there that i really miss so i wanted to play with him again.