There was no commitment, and there was no false information. How can there be fraud?

I do the same thing Amazon does all the time, to get the best price. I don’t need to be honest and tell the seller I’m using them to get someone else’s price down. Maybe I do go with the new seller if their price is good, maybe it’s not good enough to sway me from the other seller. It’s just business.

I am of course not a lawyer. But there's a whole lot of difference between casually asking a seller a price or haggle vs. asking for a formal bid for something. I think in a formal bid the expectation is that you have a reasonable chance to win given the expense needed to answer a bid.

It sounds like the sort of casual fraud that megacorps routinely get away with.