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Review title: product has quit working on my cat
Product review: I've used Frontline for years but this batch did not work on my cat. It must be a bad batch or the formula has changed. I called the customer service hotline and they told me I couldn't get a refund because I didn't have receipts that proved I had been using the product continuously for 90 days. I was told to keep using it for 2 more months while my house fills up with fleas. I've used it on my cat for years with small breaks over the winter but they would not believe me. Amazon backed the product and gave me a refund. I'll never buy Frontline or any other product from the company again.
