Did you already efile from one of them? And trying to efile from the other one?
Sorry you can not merge or delete accounts. Just pick one and stick with that one.
https://ttlc.intuit.com/community/account-management/help/can-i-merge-my-accounts/00/27136
It's common to end up with multiple accounts. First LOG OUT of whatever TurboTax account you're logged into right now. Then use this TurboTax account recovery website to get a list of user ID's for an email address. Run the tool against any email addresses you may have used
https://myturbotax.intuit.com/account-recovery
How to view all your accounts
https://ttlc.intuit.com/turbotax-support/en-us/help-article/account-management/many-intuit-accounts-...
