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Re:Square Could Pass Twitter in Value by ForHackernews on Wednesday October 25, 2017 @06:47PM (#15554953)
Amex seems to charge between 2.3 and 3.5% [0]. There's no bank in the loop there.

[0] https://www.cardfellow.com/american-express-discount-rate/#P...

Re:Square Could Pass Twitter in Value by StudentStuff on Friday October 27, 2017 @02:33AM (#15566185)
Rarely will a business get the 2.3% rate, that is purely a temporary promotion for supermarkets that are new to American Express. Also, Amex acts as the bank, with the same rewards programs and incentives to retain customers.