I just placed a subscribe and save order at Amazon and received this message, The price of your subscription may change based on the price of the item(s) in your order at the time the order is processed. What does this mean? Is my cost of the item not locked in when I place the order? I know the price can change from month to month but I thought the price was locked in for the first order. Has this changed. I use subscribe and save every month and always just cancel my subscriptions and reorder every month to lock in the price. I don't remember seeing this message before. I tried contacting them but frankly couldn't figure out how.