Please immediately contact us then we will try to do our best to help you.
Also please note that only the seller is able to cancel a bid and not us. So all what we can do is contacting the seller to ask a cancellation. Needless to say, most sellers are not happy with a cancellation request and in most cases we need to pay a cancellation fee (which is to be borne by you) to avoid a negative feedback or a blacklisting.