I think is a good idea, for Companys if thes create a voucher for small time.(1 hours...)
we need this in the Hospitaly.
this buy Time, must accumulated.
This means, if the customer goes offline / logout / disable WLAN-connection , the REMAINING TIME stops instantly. It continues automatically when the user connect back to the guest SSID again.
Other hotspot systems can do this, they call this function the "accumulation mode"