Beware, you can order on line, change your order and delivery date but the ONLY way to cancel is to call on the phone.
This is an obvious way to make it more difficult to stop them from taking money from your credit card. I conversed via email 7 times with "customer care", should be "customer, we don't care about". Anyway through seven conversations the bottom line is they refuse to cancel autoship unless you call on the phone. SDo, i just contest any charges they make.