US District Court Judge Tanya Pratt sentenced the three earlier this week. Erin and Leah Finan received 71- and 68-month sentences, respectively while Glumac was sentenced to 24 months in prison. "Consumer fraud not only unjustly enriches the perpetrator, it causes all of us to pay higher retail prices," US Attorney Josh Minkler said in a statement. "To those who seek to exploit the convenience of online shopping through fraud, remember this case. You will be caught. You will be prosecuted. And you will go to federal prison for a long time."

The Finans created hundreds of false identities and fake accounts in order to pull off their scheme. And alongside their Amazon fraud, they also bounced checks, rented cars and failed to pay for them, sold other stolen high-end goods and withheld rent -- actions that were taken into account during sentencing. The three defendants have been ordered to pay $1,218,504 in restitution.

For Amazon's part, it has begun banning customers who request too many refunds, return incorrect items or say they're returning an item for a different reason than most other customers. According to a Wall Street Journal report, this is often done without warning and without the ability to be reversed. "We want everyone to be able to use Amazon, but there are rare occasions where someone abuses our service over an extended period of time," an Amazon spokesperson told the Wall Street Journal. "We never take these decisions lightly, but with over 300 million customers around the world, we take action when appropriate to protect the experience for all our customers."