A quick look at the blockchain clearly shows we processed his withdrawal properly (TxID: f14733ff26eca708af1c115c36e6dd29b1e02005b8e5e3bcd225c161f8ec75d1). He claims has has contacted Xapo support, who have said that address never received coins, which is clearly false going by the tx above. My attempts to help him have mostly been met with him resending the exact same PM back to me repetitively and not answering any of my questions.