One of the big rules of commerce is that competing on price is generally a no-no for large markets. Usually, the powers that be would rather compete on a perceived value; that is how “informal price collusion” works.

Price/cost is the last thing you compete on unless you have a wholesale advantage, which nobody in this particular industry does (visa/mastercard set core rates)

Source: I’ve worked with higher ups in numerous commerce operations.

Commerce is actually even worse than many realize. Look up pepsi and walmart as a small example.