There are a number of fees that can be attached to these cards that eat into the initial deposit. https://www.consumerfinance.gov/consumer-tools/prepaid-cards/

There are a number of fees that can be attached to these cards that eat into the initial deposit. https://www.consumerfinance.gov/consumer-tools/prepaid-cards/understand-fees/ https://www.consumerfinance.gov/consumer-tools/prepaid-cards... Additional hypothesis: could be they also get the normal network fees waived for increasing foot traffic to the retail outlets?