I cannot be the only one here that semi-regularly books one-ways that end up being priced on BA.com in USD/CAD/EUR/CHF/HKD and so on, then they have a stupid tool that tells you what that price is in the currency you want to pay in but doesn't actually let you pay in that currency? I don't count myself as someone with great knowledge when it comes with processing payments but how hard can it be to offer a way to pay in GBP as well as the currency of where the flights are starting.

(Yes I have a 0% FX credit card but I couldn't find it today so I phoned up)