Publish America Breach of contract on at least four of the contract agreements. Baltimore Maryland

Entered into a contract agreement to publish my book 7 years ago. I received a couple of small royalty checks for 6 months. After that I never received any more money, no reports as to what my book was doing. I contacted them several times on the phone and emails.  Got no results from either one of them. My contract ends in February of 2014 and have notified them before the six month deadline with my intent to terminate the contract and also demanding a copy of what the book had done during the contract period with no answer from them.