Yep, that's the way.I've been continuing to use Custom Postage when listing, haven't been forced to Simple yet. I tend to buy RM postage direct - collections are quicker and they bring labels with them. Only time I'll use eBay for buying postage is if I need to get the package out quickly - use the QR code and drop it at the Post Office.
Custom postage, 3+ other day courier and I also offer free postage.
So it's up to me who I send it with and I already put the estimated postage, into the listing.
I'll then update the order with tracking and who I've posted with.





