Hi mgrace I will try to answer this for you the best I can...
Many Casinos will not except USA players because congress has made it very difficult for everyone with all of the restictions they have.
As of now there are 11 banned states:
Michigan, Illinois, Louisiana, Oregon, Washington,
Wisconsin, Indiana, Nevada South Dakota, New Jersey and New York
There are still a number of great casinos that do except the USA...and
Hopefully this matter will be corrected soon!
I hope I answered your question...