I have installed freeradius, daloradius , Coovachilli , & hostapd on a Raspberry Pi 3 model b using this script :
https://github.com/pihomeserver/Kupiki-Hotspot-Script
The Raspberry has Raspbian OS which is Debian 9 based linux ....
The question now , can i limit daily bandwidth for every user by 650Mbs per day & once the user reaches his limit becomes disconnected & cant login until next day ??