I just opened up my turbo tax onlin and was gonna start filing and noticed someone filed for me last year and it wasn't me. I never filed last year and didn't receive $?

Please describe exactly what you are seeing that makes you think a tax return was filed for you.

Did you log into the wrong account?  How to view all your accounts
https://ttlc.intuit.com/turbotax-support/en-us/help-article/account-management/many-intuit-accounts-turbotax/L9aVfKS1Z_US_en_US?uid=ll5g6zcx

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/