Traffic limit by VLAN or user group. Is it possible?

Hi guys,

I have two WAN ethernet connections on Balance 20x:
WAN1 is Starlink. It has a limit 1 TB/month.
WAN2 is backup. It is slow and has a limit 5 Gb/month. It connects if primary is not available for some reason.

There are 2 vlans in the network.
VLAN 10 is a business VLAN which is used for work.
VLAN 200 is guest VLAN.

I would like to have a limit-based usage of internet on VLAN:
If VLAN 200 have used above 700Gb, it is blocked.
Work VLAN never blocked.

is it possible?