I stupidly responded to an email for a "free trial" of Acai Berry. I gave a credit card number for the shipping costs. There was nothing about future deliveries. The product arrived and after taking only one it made me feel very shaky, as if it was full of caffeine. Then I started getting shipments, which I am assuming are being billed to my credit card. However, there is no return address on the envelopes that the product comes in, no receipts in the package, nothing. I don't know how to even contact them to stop this. I can't find the initial email with the credit card I used and don't even know what to tell my credit cards to look for or what the charges might be.