Was unable to do performance review this year as my manager resigned & then I went overseas on approved leave. While overseas, HR processed my performance review. When I came back, I told my next level manager & he kept assuring me I had nothing to worry about. But when it came to pay review, I was not given a pay rise. Now HR & management says it was because I was rated below target in performance review. When I disputed, they found small faults which were never mentioned to me. Is this unfair?