You are only allowed 1 verified account as per our Terms of Service. If you do open multiple accounts, then you will encounter some issues.
If you need help accessing an old account, you can reset your password by logging in and following the flow here.
Still having some trouble? Please get in touch with our Customer Support team by leaving a message in our live chat on the bottom right corner of this page, or write an email to firstname.lastname@example.org.