Seller inventory says my items are 'Active' yet when I click on the item (as if I'm a customer) my selling option isn't listed. I'm confused?

I can see you listed as one of two sellers on both listings. However, I would suggest to you that (given that neither book has a description) the prices are ridiculous. You are selling the first at £45 but there is no indication of even what the content of the book is - poetry, fiction, what? No indication of the page length of the book. Unless you know someone who really wants to buy it, no one will, especially as it is available cheaper elsewhere (see https://www.bookfinder.com/search/?keywords=9780917453113&currency=GBP&destination=gb&mode=basic&lang=en&st=sh&ac=qr&submit=)

The second is even more absurd. No description. It is listed as having 96 pages. You are selling it for £299.00. Anyone who would even contemplate paying such a price for a book would know where else to look and they could find it at almost a quarter of the price by clicking https://www.bookfinder.com/search/?keywords=9780934378383&currency=GBP&destination=gb&mode=basic&classic=off&lang=en&st=sh&ac=qr&submit=

But I can assure you that your listings are visible. They are just ridiculously overpriced. Things are not helped by the fact that you describe the first as simply “Good” and the second as “Acceptable”. No buyer is going to fork out the prices you are asking without a detailed description of the actual copy you have. Think about describing your copies in detail. And ask yourself who is going to pay £299.00 for a book described with only one word, “Acceptable”?