POCIDEL didn't break the rules here. He did request you tpa, but you weren't promised anything if you were to tpa. If he said "tpa for a torch" or something like that and then killed you, it would have been against the rules. When you tpa to someone just because, you run the risk of being killed. Closing this for lack of evidence, sorry.
Thank you for the report. Unfortunately the evidence provided is insufficient. Should you gain more evidence in the future, do not hesitate to report this player(s) again. Kind regards, The Staff