It sounds like your ex removed you as an AU, which is why those cards show as closed on your credit report; but those closed AU cards are still putting you over 5/24.
Chase's automated system will check your credit report and count all the cards that appear on it that have been
opened in the past 24 months. It doesn't differentiate between a card opened in your name or a card on which you're only an authorized user. It also doesn’t matter if the card shows closed, as long as it was opened in the past 24 months.
If you’d like to be approved ASAP, you should do as
@Albort suggested and call Chase’s reconsideration line and plead your case that Chase should not count the AU cards that have been closed. Explain you are in the process of getting divorced (they should understand), that as part of that you’re no longer an AU on your ex’s cards, you've never been and are not financially responsible for the charges on those cards. If asked about the new CIP, you’re taking this opportunity at a fresh start to take your eBay business seriously. If the rep won’t budge, hang up and call again a few more times.
If recon doesn’t work, then you need to take one more step to remove the cards from showing on your credit reports on your own. If the AU cards were Chase cards, those are easy. Once removed as an AU, you can secure message Chase to remove reference of the AU from your credit reports with all the credit bureaus to which they report on the basis you're no longer an AU and you've never been and are not financially responsible for the charges on those cards. Those are the magic words that Chase is looking for. Or you could submit a dispute directly with the major credit bureaus.
This dispute process could take a few weeks, which may delay or come too late for your upcoming purchases.