Sometimes the IRS chooses returns randomly to request verification of identity and sometimes there is something on the return that triggers the request. No matter why the IRS has required you to verify your identity, you need to follow their instructions in order to receive your refund. If you do not verify your identity you will not get your refund. TurboTax does not get any notification from the IRS that you have to verify your identity. This is between you and the IRS.
https://turbotax.intuit.com/tax-tips/security/tips-for-handling-identity-verification-requests-from-...
https://www.irs.gov/identity-theft-fraud-scams/identity-verification-for-irs-letter-recipients
As for the "5 day early" refund---that is a different issue. That offer is based on getting the refund up to five days earlier than the refund date that the IRS says it will issue your refund on. You do not have such a date at this point. You have to wait for the IRS to sort out your identity and approve your refund. Later, if the refund is not issued earlier than the IRS refund date, TT will not charge you the $25 fee.
**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.**
