From TFA: "if a repair takes longer than a month, the guarantee should be extended to match the repair time," Uh, no. That will insure that repairs always tak

From TFA: "if a repair takes longer than a month, the guarantee should be extended to match the repair time," Uh, no. That will insure that repairs always take 29 days, except in february where they will take 27 daze. Simply always extend the guarantee by the amount of any repair time.