Looks like you have chosen wrongly....
Sadly once you have selected an account to link to your email address, the old data would be over written on your device and there is no way back.
You said you did screenshot the old player ID so there might be a chance that a backup copy still exist on the backup server. To recover your old account this way, you will need to contact EA Help Center and hope that the advisor is willing to take time to look up the old data from the backup and restore your email link to the old account.
Try open a new missing content case and be prepare to have patient for there couldbe a long wait.
Good luck.