State tax filing

The previous employer I am missing the W-2 has been acquired by another company in 2019. They had reported to IRS and State Franchise Tax Board but I am the only EE missing a W-2 (other EE's received). I assume might have been lost in mail or never mailed out. Also unfortunately, don't have historical pay stubs.

 

Already notified IRS and State Franchise Tax Board who provided all numbers except the CA SDI which they do keep records of. They also cannot issue a W-2 as the only information is in the format of a transcript.

 

I am most concern with excess CASDI withheld and would want to claim a refund back from the state. I do itemized my deductions. From what everyone's saying, as long as I can reasonably estimate and provide support for my calculations, should be sufficient. I just didn't know which "wages" amount to best use for my calculations.