just to anyone whose trading me this person is lying!!

this person just left a horrible review for me and i am unsure how to appeal it, i have proof its not true at all. my friend doesnt have bloxtsar and was looking for an offer for his dog purse so we were looking at them and came across his, it was 3k under but dog purse is low demand so we didnt mind he says i was giving a “slow trade” where theres proof i took just over an hour because i have a life unlike him clearly.. i dont know how to put notifications on so i know when someone replied (!if anyone knows how to do that please lmk how!) we get in the server my friend trades him it takes 4 minutes for him to accept the trade even though i told him the user that was gonna trade him.. he takes away 2 of the main skins that had alot of value then he calls me greedy?? we ask to swap one of the skins as he didn’t have lb so he said yeah then took 10 minutes to accept the trade yet again???! even though he was moving around. this review also isnt fair to me as it wasnt me who completed the trade my friend wasnt being greedy, he just wanted the items that were listed for him