Cancellation

I have just bought a pass but need it to be canceled straight away or least change the delivery address because the delivery address that I have used is invalid. I can't seem to find any contact number on the website. I have already sent an email to them asking to do a cancellation but yet to receive a reply. I'm just afraid that the transaction would go through before they see my emails. Is it possible to do a cancelation? If so how do I do it since I can't receive the pass from the delivery address to resent and request for refund