Welcome to FT!, szwanger

The USA does not have mandatory compensation system for delays like this (no EU261). It is purely up to the carrier.
Any lodging and/or food during the delay should have been cover.
However, consequential damages, such as missed work, deposits, refundable lodging / tours, ... are explicitly (in the contract part of the ticket) are not covered.
And email is the only communication forum to customer support.
Having status or being in business class might get you extra leverage for more comp.
At this point if you have been told this was the final offer, you might try emailing a corporate executive (emails are easily googled) and their support trams might offer a bit more but not the hotels.