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> Switzerland has interchange fees of 0.4% for consumer credit cards

Only since Wednesday of this week due to COMCO action, so no-one knows if cashback will persist, but it will be a lot less than .33%.

> And let's not forget that cash acceptance costs an order of magnitude more than this anyway;

In the EU, it's .5% for cash vs .3% for cards, but the situation falls back into favour for cash once fraud is accounted for.

[brainwad]

> Only since Wednesday of this week due to COMCO action

That Visa fee table is dated July 2023?

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Right, but prior to this week, the merchant account providers just raised scheme fees to compensate.