@theseabeeman
What kind of fraud?
File an "item not received" case if there is no tracking showing delivery, or a "not as described" case if you have something to return.
You can avoid many issues entirely by choosing to only do business with experienced sellers that have a proven track record of delivering similar items as seen by examining the seller's feedback page, and by avoiding inexperienced sellers, sellers with patterns of negative feedback indicating serious problems, or sellers with large gaps in the selling history or recent drastic changes of seller behavior, or generally steering clear of deals that are "too good to be true".
