When you've chosen the purchase and entered the Digital River site to pay, choose to make your payment by "wire transfer".
Digital River handle payments. They are a huge company who handle payments for thousands of companies. Their screens are mostly blue & white in colour: see below.
If at any time their website asks you for a registration or a password, that will be because they recognise you are a returning customer. Your registration & password with them has nothing at all to do with us or with WordSmith. If you don't know the answer just act as if you were a new customer.
1. Make the purchase in the regular way by choosing your product and pressing either Buy Now or Add to cart. You can supply a VAT number. You can also choose the currency you want to be quoted in.
2. When eventually you choose the Buy now button, you must fill in a lot of personal information details of your own or your University.
3. At the bottom of that same screen, you'll see Payment Option. Select "wire transfer - prepayment"
4. Choose the currency you prefer (I chose Pound Sterling but you don't have to)
5. After that, Digital River will email you the details of how to pay, something like this:
Note: the bank details and references will be different from these.
6. Now get your bank to transfer the full amount including all bank charges.
This is explained in various languages at http://shareit1.element5.com/ccc/index.html?publisherid=206310.