Instruct: Classify the given Amazon review as either positive or negative.
Query: Beware Amazon Prime!

The product is fine. I am using this forum to share my experience with Amazon Prime in such a way as to get some action from Amazon (More rational attempts have been futile) and to warn others of a problem with their program. I have bought quite a bit on Amazon and untill reciently, have been happy. However, although I pay nearly eighty dollars per year for second day delivery to my home, the last half dozen packages have ended up at my post office box with postage due on every one. My attempts to get an answer besides "sorry" haven't produced much so far. Beware Amazon Prime.