Really? An hour? Give it a bit more time, maybe he fell asleep or something while waiting for it to confirm? (I don't know how confirmations work with xrp but I would assume it's a similar process?
But I will be following this.
Can you also post proof that you have sent the xrp and your wallet address for receiving from blockchain that shows nothing has been received?
Yes, only gave it an hour, it does not take even close to that long for things to happen.
Even so, still no contact from this person.