I am using ebay since 15-20 years and I had some issues too (around 1-2% of my total sales...)
Unfortunately they are the biggest / most visited place for selling collectible stuff (at least here in Italy). It's also very easy and quick
Even if I tried other options (like delcampe or catawiki) no one has been able to have the same visibility / fees.
Auction houses most of the times have a lot of restrictions and become useless for items not expensive ...
Obtorto collo
https://en.wiktionary.org/wiki/obtorto_collo I haven't changed their service

@Eclipse33 - before you get banned you have received some communications by them or at least some sale closed...did you want to share what happens?
.
Been using delcampe a lot, though since the change with DAC7 it has gone backwards imo... forcing the use PayPal or their own payment service, this dropped my sales significantly.