What is quite interesting, is they buyer gets the shipping quote based on your weight and size measurements put in while listing the item.
Which you don’t actually have to do.
I recently sold a frame by GSP, but I completely forgot to put that info in
When it got to the GSP, I got an email saying i need to make sure I input this when listings items in future. But there is no charge back to me..
This was lucky, as a bike frame going to the USA probably cost a lot more than the £18 they paid for GSP shipping.
Fully my mistake, but one I have remembered when listing things now