I filed in april before due but when I went into turbo tax it asks if I want to file now. I paid for filing and still have not received my refund. What should I do?

Did you efile?  Was it Accepted?  You can check your efile status here     

https://turbotax.intuit.com/tax-tools/efile-status-lookup/   

When you efile you get back 2 emails.  The first email only confirms the transmission.  The second email says if the IRS (or state) Accepted or Rejected your efile.

When you log into your account you should also see the status and if it was Accepted or Rejected, Started, Printed, Ready to Mail, etc.  what does it say? If it says Ready to Mail that means you are suppose to print and mail your return to the IRS. 

Are you in the right account?  

That'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/

You might be in the wrong account--or you might have paid your TT fees but did not follow through and actually file the return.  Paying the fee does not file it

When you e-file your federal return you will receive two emails from TurboTax.  The first one will say that your return was submitted.  The second email will tell you if your federal return was accepted or rejected.  If you e-filed a state return, there will be a third email to tell you if the state accepted or rejected your state return.

First, check your e-file status to see if your return was accepted:

https://turbotax.intuit.com/tax-tools/efile-status-lookup/

If the IRS accepted it, what does it say here? 

https://www.irs.gov/refunds           Or does your account say “Ready to Mail?”

[Duplicate answer removed.]