Bongodog
I don't know what part of my post you had troubling understanding, but it is customary for companies to charge only once for providing a service.
Not three times.
How was I to blame, for being helpful and confirming the situation.
How was the credit card company to blame, for accepting three billings from a reputable merchant?
The blame on this lies entirely with BA for incompetence, there is no excuse.
Furthermore, as the company realised that they had overcharged and posted a credit (for only one overcharge), common courtesy would tend to suggest an email informing the client, as the credit could take a few days to go through and it might impact the client's credit limit (in fact it did and it didn't.)
Despite BA havng my email address, they didn't bother to let me know.
Just more bad practice from a company that needs to service it's clients very well in the present market.