A couple of billion is an insignificant fraction of the $10000bn MasterCard processes every year.
which is relevant how exactly?
merchants don't deal with mastercard, they deal with an acquiring bank
of which there are hundreds
no doubt one of which will be happy to take the business
which is relevant how exactly?
merchants don't deal with mastercard, they deal with an acquiring bank
of which there are hundreds
no doubt one of which will be happy to take the business