We do not presently have a UK contact number for CafePress, however you can phone their international customer care helpline on 1-919-323-4480.
On calling this customer service and support line, your product or service related enquiry will be dealt with in a polite, professional manner.
Alternatively you can use CafePress’s contact form at this web address: http://www.cafepress.co.uk/cp/info/help/contact.aspx
CafePress have for several years been a seller of merchandise emblazoned with logos of small businesses, online personalities and popular memes. They’re best known for stocking T-shirts, mugs and caps.