Top XX banks accused of colluding on ATM fees
The lawsuit, filed in federal court, alleges Bank of XX, YYY and ZZZ worked with XXCredit Card to artificially set high rates on ATM transactions. They were able to collude successfully for some time to increase their profits.
An agreement among firms over production and price is called collusion, and the group of firms acting in unison is called a cartel.
collusion = conivência
collude = atuar em conluio
em conluio = in collusion with