This might be a long shot, but I thought I might as well ask.
I recently purchased a Richter amiibo (the last one) from a JB HiFi, for RRP, only to learn later that Eb Games has a listed price for an identical item at a mere $4.95. Of course, no stock anywhere near me though, but it is listed on the website.
So would it be possible to ask JB to price match it after the fact? Maybe even return, and immediately rebuy? And has anyone done something like this successfully?
You can ask for anything, but whether or not you get the answer you'd like is the real question.
Some retailers will, some won't, but it's very much in the realm of goodwill and less common than a change of mind refund policy.