If you created a TurboTax online account to e-file the 2023 extension request then you need to sign onto the online account using the same UserID you used to create the 2023 account - https://myturbotax.intuit.com/
See this TurboTax support FAQ for how to view all of your TurboTax accounts - https://ttlc.intuit.com/turbotax-support/en-us/help-article/account-management/many-intuit-accounts-...
