Hi Piero,
Earlier this year we updated our website and added the promotion code feature.
In tests, the function works fine for U.K. and European customers where the customers pay VAT. However, there is a bug for customers who do not pay VAT in the E.U., or non-E.U. customers where VAT is excluded, which the software providers are trying to fix.
I had notification from the developers yesterday afternoon that they have fixed the problems I had raised. I will need to test this next week. If it works as it is supposed to, then I will start issuing promotion code/s for certain product/s in about two to three weeks time, but don't get too excited, as I have still to decide what product/s will be selected.
Until the bug is fixed, we will continue to run promotions or deals or discounts as we have been doing to date.
Ketan at ARC