PPP Usage Limitation

Hello

Can someone assist me with the following information.

I currently got a RB951G-2HND and got Huawei E367 modem connected.
Currently I have PPP Connection which is shared via WIFI / LAN.

On the DHCP Leases I put up static IP’s which is then Firewalled to allow/deny internet access.
Local Data is not restricted.

I am looking for an solution to limit 3G (PPP) Usage.
I have a Vodacom 3GB + 3GB Nightowl data.

Is it possible to lock PPP ( disable ) once it reaches the limit of 3GB Data.
It would be great if one could specify when the data been used. 5:01 - 23:59 (daytime) / 00:00 - 04:59 ( nightowl )

Thanks

It’s possible, but every time you reboot the routerboard, the Gb are lost…

The only way is to use hotspot package.
Is too much comlex explain how to from zero, sorry I can not help you, but I give you a hint…

I would much appreciate any advise..

I even been trying to ask Vodacom South-Africa to try set an account limit… but according to their call centre it impossible.
Hell they cannot even apparently give accurate usage reporting when doing enquire - even if the connection been offline for more than 1 full day.

If I could I would implement both protections - hardware + Vodacom billing.