Sorry -- No one can call you from this user forum. Phone support is not provided with the Free Edition, If you purchased a paid version of the software or purchased PLUS you can contact customer support during their business hours.
To call TurboTax customer support
https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number
They are available from 5 a.m. to 5 p.m. Monday - Friday Pacific time.
As for not knowing how much your refund is in order to enter it on the IRS site, all you need to do is LOOK at your Form 1040 on line 20a. That is where it can be found. Did you forget how to access your account?
Many people have multiple TT accounts and forget how to access them. Log out of the account you are in now.
Account recovery
https://myturbotax.intuit.com/account-recovery/
https://ttlc.intuit.com/questions/1901535-forgot-your-turbotax-user-id-or-password
Or did you use the desktop version of TurboTax? If so, the files are on your own hard drive or any backup device you used like a flash drive.
https://ttlc.intuit.com/questions/1901486-how-many-turbotax-accounts-do-i-have
https://ttlc.intuit.com/questions/1901535
TurboTax gives you an estimated date for receiving your refund based on a 21 day average from your date of acceptance, but it can take longer.
Once your federal return has been accepted by the IRS, only the IRS has any control. TurboTax does not receive any updates from the IRS. Your ONLY source of information regarding your refund is the IRS.
To track your Federal refund:
https://www.irs.gov/refunds
To track your state refund:
https://ttlc.intuit.com/questions/1899433-how-do-i-track-my-state-refund
On the IRS site you are also offered the use of an app called IRS2Go
https://ttlc.intuit.com/questions/1901548-why-do-some-refunds-take-longer-than-others
If you chose to have your TurboTax fees deducted from your federal refund, that will take some extra time, while the third party bank handles the refund processing.
https://www.irs.gov/refunds/tax-season-refund-frequently-asked-questions
https://turbotax.intuit.com/tax-tools/efile-status-lookup/
https://ttlc.intuit.com/questions/2584108-why-is-there-no-record-of-my-return-at-where-s-my-refund-w...
Sometimes people get confused by the “summary” given by TurboTax and use the wrong amount for the federal refund. Make sure you are only using the federal refund amount, and not an amount that combined your federal and state refunds. Look on line 20a of your 2018 Form 1040 for your refund amount.
https://www.irs.gov/refunds/tax-season-refund-frequently-asked-questions
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
