Ok so I do not not know the paymonde story but I have some info for you I got paymonde's address here
http://paymonde.com/contact.htm
MAIN OFFICE
Ezpaynet Ltd,
7 Petworth Road,
Surrey, UK, GU27 2JB
So I googled address for ya and hear are the results
http://www.ukdata.com/numbers/05577728.html
http://www.invaluable.com/Centres/Surrey.asp
Serendipity Antiques & Craft Centre
7 Petworth Road
Haslemere
Surrey
GU27 2JB
Tel: 01428 642682
Hope these are helpful to you maybe the telephone number is not for paymonde but I bet they now the tel number for them as they share address