You would have to file your W-2 using the "substitute W-2" form. Enter the W-2 as you think it should be, and check the box for "I need to make corrections to my W-2" on the page of special circumstances. This will trigger Turbotax to prepare the substitute W-2 form.
However, you should ask for a corrected W-2 first, and document their refusal or inability (save your email, etc) before filing with the substitute W-2 form.
