Any consumer reporting agency or user of information which is negligent in failing to comply with any requirement imposed under K.S.A. 50-701 to 50-722 , inclusive, and amendments thereto, with respect to any consumer is liable to that consumer in an amount equal to the sum of
(a) any actual damages sustained by the consumer as a result of the failure;
(b) in the case of any successful action to enforce any liability under this section, the costs of the action together with reasonable attorney's fees as determined by the court.