Is there an official place to report Internet coverage issues?

I live in NY metro area and travel via train between New Brunswick and Newark/New York and this route is a real pain for data/internet coverage, even when the 4G LTE sign is showing the connection is often slow to dead. Initially when 4G LTE services were, i was really happy with the services, then came Sandy and after that my experience was never same. Often the phone would switch down to 3 or 1 X, which is practically being in the dead zone. Is there a place where i can report these issues with more details and hope for some resolution, if not immediate but in the near future.