Slightly unrelated, but...
...our local council use Crapita to process online payments for various things from council taxes to paying for a recycling bin for garden waste. It was on the latter that tit ook me more than a few seconds when being sent to the card payment site that the big graphics of card types wasn't just a "we accept the following" type of thing but was waiting for me to tell it which type of card I was planning to use by clicking on the right one.
Notwithstanding that most places seem to be able to work this out automatically from the card number, there was nothing at all to indicate you were supposed to do this.