I know a lot of people are effected by this "glitch"

Perhaps if we contacted eBay ferociously via the eBay customer service chat facility,     as I have just done,    and ask how much the credit will be due to the non Availability of the Zoom feature, and the fact that my sales have fallen by 50% we may get some action,.

I know their responses are robot like, but at least we could annoy them a bit ??

Just jump on chat line and ask about credit, worth a try