Tax filing

So I hired a tax consultant to file my taxes. He sent me the form to sign and I noticed the total income amount seemed lower than usual for me and my spouse . I checked my w2 and it’s lesser than my gross salary on my paystubs..

I am super upset with my employer and not sure what shit show they have created.

Now what will be my options? I am reading I need to get a corrected w2 from them? But since filing deadline is in two weeks, how do I cater that?

As I know I owe taxes and will probably owe more once I have corrected w2