Last updated: 23 November 2015

Our website has been updated -


to transfer to the new website. Thanks!

The Euro and US dollar prices are updated periodically. You can find today's price thanks to the good people at Currency Converter
For details of what these exchange rate calculations mean, see Currency FAQ

Prices do not include shipping or postage and VAT.

Prices are quoted in UK Pounds Sterling, US Dollars and Euros. Exchange rates are approximate, and the correct rate will be used when invoicing. Payment may be made in UK Sterling and Euros without currency conversion charges.

We accept Mastercard and Visa credit and debit cards, and American Express - no currency transaction charges apply. We may surcharge Amex cards. Please contact us to set up a credit account, or if you have any other queries.

In order to satisfy our own consciences and the current regulations, we do not keep any electronic records of credit card details. A downside of this is that you need to give us the card details for each order. Because of the UK tax regime and the use of "chip and PIN" for customer present transactions, we need the following information for "customer not present" orders:

  • Card number
  • Expiry date
  • Last three check digits from back of card
  • Shipping address with full house/building number and Post/ZIP code
  • Card billing address with full house/building number and Post/ZIP code
    if not the same as the shipping address.
  • VAT/TVA number for companies in the EU or an EU regulatory zone.

US customers who rarely use their cards for foreign purchases may need to contact their bank to authorise the transaction. This prevents the bank declining the transaction for security reasons!

You can send your card details by phone, email or post etc. Encrypted mail can be sent to Please note that our systems only support CPIP (RFCs 1149 and 2549) on special request.

Every so often, the numbers beat us into submission. We now have to charge GBP 20.00 for delivery of software products on physical media. You will receive a CD or a USB memory stick.