Why contact eBay? The Defect Policy is clear and they are not going to change it just for you.
As far as the Ad fees, while you may no longer be using promotions you will potentialy have promotion fees for 30 days after you (or eBay) ended the promotions you were doing (again, the policy is clear).
Why did you earn those 4 unresolved by seller Defects?

"What else could I do? I had no trade so I became a peddler" - Lazarus Greenberg 1915
- answering Trolls is voluntary, my policy is not to participate.