You cannot jump this step. Where did you get the 5 years delay information? Did you asked direct to the Consulate?
No, congresswoman/congressman or an email will not allow or help you to skip this.
Why are your children suffering? Are they in danger? If so you definitely need to thing in relocate them to a safer place or request an expedite if is possible.
If you share more details will be easier to get better answers.
Good luck