You have to call Dell directly for order cancel or changes. This is a user to user tech forum. 
I have placed an order for Alienware X17 R1. The original delivery date was on the 15th Nov 2021. I checked on the order status regularly but it didn't go into production for a long time. Once it goes into production, I received a notification email that my order will be delayed to 26th Nov 2021. I have a big problem because I am traveling to Taiwan and will be staying there for a long time. I don't have anyone to receive the laptop in Singapore. I urgently need to cancel the order because of this. I have no way of receiving the order. Yet, I have been trying to get a hold on the Order Support and no one was replying for a week. I need to get this issue settled ASAP. Please help me to get the attention of anyone who is in Dell and able to attend to my situation Thank you. 
Alienware delayed. Need to cancel order due to unable to receive product