making the shops pay more to use the payment service, so that the shops then increase the prices, so that you pay the same as before
Just nitpicking because I enjoy these thoughts:
When the shop increases prices, it has to do it for all the customers, including the ones without credit card. So a part of the cost is offloaded to other types of customers. While credit card customers should see a slight increase in price, it should not be as much as they saved previously. So still a net win for them, at the cost of others.
As others pointed out, the real scheme is probably entirely different.
Just nitpicking because I enjoy these thoughts:
When the shop increases prices, it has to do it for all the customers, including the ones without credit card. So a part of the cost is offloaded to other types of customers. While credit card customers should see a slight increase in price, it should not be as much as they saved previously. So still a net win for them, at the cost of others.
As others pointed out, the real scheme is probably entirely different.
A lot of smaller businesses charge you extra for using the credit card or something similar.
The bigger businesses don’t do that.
Of course the bigger businesses do. it’s rolled into operating costs and is reflected in their pricing.
You just don’t end up with a different price differentiated by the transaction method.