eBay Glitches Caused An "Unpaid Item Case"

I made an offer on an item.  The seller made a counter offer the next day.  About the day after that, I paid.  Apparently eBay or PayPal glitches caused a problem and the transaction didn't register, but I didn't know it.  eBay sign in and transaction glitches are uniquely hurtful to an online marketplace. 

Cui bono? 

About a day later apparently the seller? who is unusual, started an "unpaid item" case against me, a first in over 20 years.  I replied to the email but did not notice it that it wasn't monitored.  Due to a possible glitch I could not send a message on the site.  Somehow, it asked me to re-sign in to send a message but wouldn't accept the sign in.  Hmmm.

They put an unpaid item report on me.  Luckily, it wasn't that hard to find the appeals process.  I appealed and they removed it the next day.  That part was good.  I wish I could check that it is really gone, cause.

As a buyer, eBay has it's good points but there are too many (self-inflicted?) glitches and other issues.  Too bad.  Although the problems change over time, they have been going on for decades.  We deserve better.