The tribes are now up in arms over plans of the New Mexico government to claim tens of millions of dollars in back revenue from their casinos.

anta Fe New Mexican reported that three pueblos have joined forces to block New Mexico Gaming Control Board’s plan to impose a $40 million as result of their alleged failure to pay for the free play credits.

The dispute between the state regulator and the Tesuque, Sandia, and Isleta pueblos stemmed from a long-disputed interpretation of an old agreement for sharing revenue from tribal casinos.

The three tribes contend that credits are not included when calculating the revenue tribes that will be shared with the state under the 2015. Casinos give gamblers free-play credits to entice them to play slot machines