As this post is just about Commense review, we can only give you such information.
Kindly use the order confirmation email to cancel your purchase if you change your mind about the order you placed. They are unable to make any modifications to your purchase after it has been sent out of the warehouse; thus, you will need to wait until it is delivered.
If you placed your purchase in the United States, you will have the option to make a return for free after your package has been delivered. If you place an order from outside the United States, you will be responsible for paying the cost of the return shipping.