Front page listings are being charged and
seem
to actually display on the front page (I can't confirm my newest products are being shown there. I've not seen them but that could be a coincidence.)
However, all listed products are showing 0 impressions for today and the week. There are clickthroughs being reported, though I am not sure how accurate those are, not least because "2 clickthroughs from zero impressions" is hard to trust.
I made a support ticket and was asked to delete the listing enhancement for a product (Hedone, show in the attachment), then be refunded and relist the product. I did all those and noticed that not only was Hedone showing zero listings, so was everything else with a current listing enhancement.