An England fan said he had lost £2,000 after he bought fake tickets for the Euro 2020 final.
Aston Villa fan Ben Moore said he was "sceptical" of the offer, but it seemed believable when the seller showed him photos of the tickets.
He agreed to pay £2,000 upfront and a further £2,000 for the second seat on receipt of the tickets.
But a few hours after the money was sent, the seller blocked Mr Moore, 28, on Twitter and "disappeared".
He has reported the incident to his bank and Action Fraud.
"I'd been spamming the UEFA ticket portal for days, like all England fans, but I went through Twitter and came across this guy, he said.