Hi Damian,
We have considered those extra costs and have decided to curb the available methods of payment by not accepting card payments. The following other options are available:
1) PPPay account payments are free (not card payments)
2) I can provide a barcoded invoice for customers to print & pay cash anywhere they see the PayPoint sign (minimum payment £5)
3) Uncrossed Postal Orders can be accepted.
or
4) If the pens are part of a combined shipping of different items, then all our normal forms of payment will be acceptable.
(I'm trying to set up a combined shipping co-operative/project with a couple of other eBidders here so that all our items can be combined and sent together.)