One line on one bill
A third-party web listing service, $24.99 a month, on one location's internet bill. The contract says, in writing, that third-party web listing is not authorized.
Six months later: $149.94, for nothing anyone asked for.
Sample dataHow TIP knows
Your contract says what's included and, often, what's expressly not: no device protection, no overage on an unlimited plan, no third-party add-ons. TIP keeps those terms and checks every billed line against them.
A charge the contract prohibits is a billing error, however small, however long it has been there. A legitimate service that simply isn't in the rate table is left alone; the ground is what the contract forbids.