Why is Amazon not letting me cancel my order?
You can cancel an Amazon order from the “Your Orders” page of your account. You can’t cancel an Amazon order if the item has already shipped, or if the seller doesn’t allow cancellations. If your cancellation request is denied, you can always try returning the item once it arrives, which is allowed in most cases.
How do I cancel an Amazon order that’s too long?
Cancel Items and OrdersGo to Your Orders and select the order you want to cancel.Select Cancel items. Note: For seller orders, you may see Request Cancellation. Select the check box of the item you want to remove from the order. Select Cancel selected items in this order when finished.