Fraud is fraud, but more work to show the proofs. See a litigation attorney and lay out the facts. It sounds like a con, with the added crate and all.
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I agree with Barry Poulson below, except before hiring a lawyer I would contact the local Postal Inspectors. They are often involved with these types of cases and may be able to play this out for you.
PS. Never buy a puppy sight unseen. Even if it is legit, you don't know if the pup is a pure breed, if it has issues if it is friendly etc. Call a local reputable AKC breeder and get a dog who you can care for and that was breed to be a companion. Unless you are doing animal rescue, leave the puppy farms and the crooked people to those like the ASPCA. You get a pup that will give you pleasure and not Agita. (Italian for heartburn).
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I agree with my colleagues, but what does your contract say about this? While it strikes me as "possible" that this could be a scam, it could also simply be a failure on the part of the breeder to investigate the costs. In light of these new facts, she should happily return your money, and let both sides walk away from this transaction. I see this more along the lines of a breach of contract than fraud case. Breach of contract is a lot easier to prove, as well.
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There are several types of fraud under Illinois law.
One is consumer fraud, which is a statutory cause of action, brought under the Illinois Consumer Fraud and Deceptive Business Practices Act (http://www.ilga.gov/LEGISLATION/ILCS/ilcs3.asp?ActID=2356&ChapAct=815%C2%A0ILCS%C2%A0505/&ChapterID=67&ChapterName=BUSINESS+TRANSACTIONS&ActName=Consumer+Fraud+and+Deceptive+Business+Practices+Act). Among other things, the fraudulent transaction must have taken place within the state.
Another is common law fraud. To prevail on such a theory, a plaintiff must plead and prove each of the following elements: a false statement of material fact; the defendant's knowledge that the statement was false; the defendant's intent that the statement induce the plaintiff to act; and the plaintiff's reasonable reliance upon the truth of the statement, which reliance damages the plaintiff.
You may want to reach out to the Illinois Attorney General; click on the following link and review the information there: http://www.illinoisattorneygeneral.gov/consumers/index.html.
Sounds like you may have a cause of action for breach of contract.
Hope this helps. Good luck.