Ok say you go into an antique store. You see a vase you like. You ask the shopkeeper "hey how much for that vase?" and they say "it's a firm $50,000."
You have not paid yet.
The seller goes back and realizes that the sticker price was wrong, or that it was the owner's special vase, or that they don't actually really want to sell it.
Can you sue at this point? I'd wager not.
There are certain jurisdictions where public advertisement of prices must be honored, assuming stock and conditions are met - but this is not one of those cases. Even airlines are no longer actually required to honor mistake fares after they collect money from the passenger in spite of 14 CFR 399.88(a) [1]
Asking how much something costs and getting a quote doesn't entitle you then to make that purchase unilaterally, even if you get a counterproposal. Otherwise any time a website bugs out and displays an incorrect price you could just sue them lol.
At no point did Jump obtain a binding option to purchase. Generally to force the seller's hand, they must have already accepted the money or signed something indicating that they will sell.
[1] https://www.law.cornell.edu/cfr/text/14/399.88
