It appears that AT&T has quietly raised the administrative fee on customers’ wireless bills by $1.23, effectively increasing it from the previous $0.76 to $1.99. For those not familiar with an administrative fee, it is basically just a minor line item usually buried somewhere inconspicuous on the monthly bill. The hike may only be by more than a dollar, but according to a number of industry watchers, the increase should equate to about $800 million per year for postpaid mobile users subscribed to AT&T (the administrative fee is not applied to prepaid).
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https://www.wirefly.com/blog/news/att-has-increased-administrative-fee-wireless-bills-123