Llumina Press Not paying us our royalty Tamarac, Florida

The company Llumina press has neglected paying our -Royalty- as the author. and I actually broke the contract due to their unprofessional services and its behaviours but then afterwards, they are still not responding for the duty of paying the royalty.

Now, I am even very suspicious about how they honestly paid me about my royalty in the passed years since 2005. if you can investigate about how their business were from the time I had contract with them, that will be very appreciatable.

Thank you,

YOSHIDA