I'm sorry to here these are not the parts you need. As Shapeways print and sell the parts on my behalf I can not cancel any order for you. To cancel the order you will need to log into your Shapeways account and click on orders. In there you will be able to cancel the order before they process it. Failing that you will need to contact Shapeways customer support, they a very friendly and will be able to help. Regards, James.