PulishAmerica Selling my book, and not paying me royalties Frederick, Maryland

My name is Mary G. I  book published by PublshAmerica in March of 2008. I gave it time to start selling, however I have recently been on internet and to several wesites which says my book is sold ot , or is seliling out. I contacted PublishAmericaabout this, and they claim they have no knowledge as to who is selling my books. therefore hey are not getting the money, I am confused because they(PUblishAmerica ) only print n demand, so therefore how could they not know?    I did not recieve a royalty check in Febuary which is when they are sent out.  They are also sent out around  mid-August.  I have yet to recieve mine. I have recently heard and read some very disturbing things about this company. Any information you or help you can give would be greatly appreciated. My e-maial address is (((ROR REDACTED))). Thank you for your time.

CLICK here to see why Rip-off Report, as a matter of policy, deleted either a phone number, link or e-mail address from this Report.