Dollar General sued by FTC and 20 states for overcharging customers at the checkout

The FTC and 20 states allege Dollar General overcharged customers for years despite receiving tens of thousands of complaints about incorrect prices on shelves, price tags and ads - (Getty)

Dollar General is being sued by the Federal Trade Commission and 20 states over allegations that it repeatedly charged customers more at checkout than the prices advertised on store shelves.

The lawsuit, filed Monday in federal court in Tennessee, claims the discount chain continued the practice for years despite receiving tens of thousands of complaints about incorrect prices.