Post reply, manage attachments, browse, find the replay, upload, then post.
Though a replay wouldn't tell us much, since their easy to fake.
We wouldn't be able to view it either since there's weird stuff going on with the attachment downloading function.
Also, you should PM an admin (the guys with a red coloured name) or a super moderator (the guys with a blue coloured name) with proof instead of making a thread here in support. Hopefully they'll sort it out for you