On 2008-03-09 21:10:02 +0000, Lobster said:

Of course, but the alternative of not *lending* them a fiver by buying
the voucher is to *give* them a fiver to cover the postage.

(Thinks... how much interest will I lose on my fiver until my next
Screwfix order...?)

Also, the voucher has probably been paid for using a credit card, so
for (potentially) several weeks the fiver is actually being lent to
Screwfix by the credit card co anyway!

David

This is becoming too complicated......