I'm a little confused. You told him you wanted P4, DS3, UN3 but he replies with UNB3, DS3, BPROT4. You proceeded to pay him he gave you the boots with the enchantments he said, correct? Unless I have missed something out, what has he done wrong?
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