Ok so now this is getting annoying. Chasing these images round a screen and waiting for new ones to slowly fade in has reached the point now that I no longer engage and will email every website that I need information from to tell them they need to provide it some other way that does not require this ridiculous interaction.
To make matters worse, today I clicked the little headphone icon. Immediately a popup appeared whinging that my network is making automated queries (so, two then, and manual) and I can get no further. Switching to 4G got past that and the audio clip did then work, and is actually a whole lot easier than chasing squares.