Interface traffic hard LIMIT monthly

RouterOS Scripting
1

What is the way to limit total traffic from one interface? I am very disappointed that there isnt a way to achieve this.
Even netgear support this out of the box.
But in mikrotik seems to be NO WAY.
http://documentation.netgear.com/fvs336g/enu/202-10257-01/FVS336G_RM-11-02.html

So I am asking like other people did already with no answer. Is there a way to achieve this ?
I want to limit 3g traffic.

2

You can do a script for get traffic counter and if the limit is reached then you can block the traffic or disable 3g interface like netgeard vendor.

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3

Indeed.But how can this counter dont get reset ?