Telephone 0344 800 6435*
Our customer service agents are available 8am to 8pm, Monday to Sunday (excluding Christmas, boxing and New Year’s Day).
Our address is:
Card Services, PO Box 1586, Westside, London Road, Hemel Hempstead, HP1 9SF
*Calls to this number are charged at the same rate as 01 or 02 numbers on mobile phone tariffs