Every scam victim wants to have a moment where they go from victim to victorious.
"We felt pretty bad, we lost $6,000," said William Kaan, a credit card scam victim.
Kaan was angry after he installed two air conditioning units in a home, and then discovered the credit cards used to pay for the work were no good.
Postal inspectors told Kaan he had gotten caught up in an identity theft scam.
"It began with the perpetrator ordering cards, credit cards in other people's names sent to a specific address," said Andre Brown, US Postal Inspector.
The suspect then used the fraudulent cards to go on a shopping spree.
About 90 people fell victim to the scam, estimated worth $2.5 million.
Kaan was one of those victims until he turned the tables on the suspect.
The small business owner went undercover with postal inspectors to catch the fraudster in the act.
"We made an estimate for a new air conditioning unit. He didn't want to give me his card. He said he'd call it in. When we got back here, we called in a card it was bad," said Kaan.
"I told him on the phone, that card is no good; he said wait a minute I got another card. He gave us another number, we ran that and it was a bad card too."
Postal inspectors quickly arrested the suspect.
"Don't let it go, don't think that your money is lost, it might be still there, but you still want to put the fellow where he belongs if he's doing it to a lot of people. Take care of your own business," said Kaan.
To ensure you're not a victim of identity theft, order and review copies of your credit report every year from each of the three major credit reporting agencies.