Second, even if the issue were preserved for appellate review, Sheridan's raising payment as a defense in his response to the motion for summary judgment properly brought the matter before the trial court. White v. McCarty, 171 Ga. App. 666, 670(1) ( 320 S.E.2d 796) (1984). Judgment reversed. Blackburn, C. J., and Johnson, P.J., concur.