Congressional offices have a lot of canned responses to constituent communications, but they don't have a response ready for everything people send them. So some staffer or intern probably picked the off-the-shelf response that seemed closest to your letter. An irrelevant response doesn't mean they aren't paying attention, however! Congressional offices tend to follow constituent mail and contacts very closely.
Post Edited (fiddlecanoe) : 4/5/2017 2:54:09 AM (GMT-6)