It was just rejected by the requester, which means it is not definitely rejected, and as you're an English expert, dramati, you can validate it despite the requester's rejection.
I've often been asking myself what these rejections by the requester could mean , actually it can be due to an error done by him/her , or to the requester's lack of confidence about the translation , or (seldom seen, it just happened a few times) when the requester was dishonest and just wanted to spare some points after s/he saw the translation...