The Federal Communications Commission announced Wednesday plans to sue AT&T for allegedly making misleading claims to customers about its unlimited wireless plans.
The company reportedly cut network speeds for those customers who bought unlimited data plans, once those customers reach a certain threshold on their data usage. The FCC accused AT&T of failing to alert customers of that action, the Hill reported.
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In some cases, AT&T cut speed by 90 percent, leading to thousands of customer complaints.
"Broadband providers must be upfront and transparent about the services they provide," FCC chairman Tom Wheeler said in a statement. "The FCC will not stand idly by while consumers are deceived by misleading marketing materials and insufficient disclosure."
AT&T has 30 days to issue a response to the FCC's plans, which were announced by way of a "notice of apparent liability," the Hill reported.