The cashback money is funded in two ways: 1. Increased fees that the banks and networks charge merchants. This increases prices for goods and services for ever

The cashback money is funded in two ways: 1. Increased fees that the banks and networks charge merchants. This increases prices for goods and services for everyone, regardless of how each individual customer pays. 2. Interest payments and fees paid by people who don't pay off their cards every month. This includes a whole range of people, but is often those who can least afford it. The whole system is unsustainable, and I don't use cashback cards.