Instruct: Classify an Amazon review as either positive or negative.
Query: Product is Great, but Linvobit/Amazon service is TERRIBLE

This is a terrific product, but Buyer Beware: Lingovbit has provided bogus contact information to Amazon, and even Linvobit's own website does not have valid contact information--the email addresses are all bogus. If you have any sort of problem, Amazon will tell you to contact the seller directly, even though Amazon took your money, and then you will learn that Lingvobit is impossible to contact. Amazon will then tell you again that you need to deal with the seller, and will not contact them on your behalf when you tell them you cannot find a way to do so yourself. I loved the first one I ordered, and was ordering one for a friend, who then changed her mind 10 minutes after I ordered it. All attempts to cancel it failed, and now I will have to wait literally WEEKS for my refund... plus, I will have to pay to ship the thing back... I would find another source for this otherwise excellent product...