100ccu plan , bandwith limit ?

Hi, what hapens when the 100ccu plan exceds the 3gbx100 of bandwith? connections are refused or fees are applied ? I see that for the 20ccu plan "The traffic included is 3 GB per Plan CCU. No further traffic can be used." . I read about month ago the same about the 100ccu plan but can´t find the post. Thanks