Could anybody please explain how Exi and Axi work?
There seem to be many files for gammacard around, so I think this information must be known by some people. So could somebody please answer the following:
Is the Axi/Exi different for each card (linked to HSN) or is there only one Axi/Exi for all cards for one provider?
And if each card has its own Axi/Exi, how it is generated from the HSN?