You don't need to drop far in the DSRs to be threatened with getting chucked off eBay.
My missus sells loads of clothes on eBay, and is now at the point where she gives free postage, and adds it into the opening price, so that you can't rate the postage.
She doesn't overcharge and is pretty quick at getting things out, well packed etc. but she used to insist on recorded delivery, which meant some complained about the cost for the difference between recorded and standard postage (which in itself is bollox, because eBay recommends that items are sent recorded).