Email me. Contact info in profile. The IRS cannot waive interest. That's the law. They can waive penalties but not just because. There has to be a reason. The IRS has procedures to follow. It's a bureaucracy. See if you can fit yourself in the rules. (The rule book is the Internal Revenue Manual and it is online).

I will put you in touch with someone who is good at this.

Appeal to authority: I am a tax lawyer.