Is this page for you?
Plainly: this page helps most if you complete Form 911 for more than one taxpayer, or you are sending a second request and the contact details, identifying numbers and third-party block are the same. If this is a single request about one problem, the benefit is small, because the part that matters most, your description of the problem and the relief you want on lines 12a and 12b, is yours to write each time.