While most lootspot sales and purchases (and other trade interactions) go without difficulty they can go badly either way, the order in which invite and payment are sent is, unfortunately, no guarantee of a trouble free experience.
I am firmly convinced that the vast majority of players play the game fairly and for honest enjoyment and this makes TSO much of what it is but if someone truly wishes to take advantage they will find a way and this is why I agree very strongly that, for any instance of suspected scamming,:
and that it: