I have been registered with eBay of over 25 years and have a 5000+ 100% eBay feedback rating.  This Simple Delivery is absolutely rank and not fit for purpose.  I was told that I could arrange a Royal Mail collection using simple delivery... I could, but I would have to go onto the RM website and book it at a cost of 30p.  Also, when selling multiple times for the same listing it will overcharge postage - to the buyer as eBay collects that directly from them!   So, how is this making eBayers lives easier?  The answer is that it in not - it is making their lives a misery.   At least give sellers back the option of Custom Delivery until you can make Simple delivery work to, better still, cast it into the Devil's inferno where it belongs.