Twice I have received an email from Ring Central stating that I'm near my monthly limit on texts. This is the actual message: "Your domestic SMS usage has reached 90% of your monthly Included SMS allocation. If you go over the 100% limit, your SMS traffic will be charged at the rates set out in your region.
You can see your current Included SMS utilization level and corresponding SMS log by logging into the RingCentral Admin Portal and opening the Billing tab.
If you would like to purchase a SMS bundle with greater SMS/MMS allocations please login to your Admin Portal, open Billing tab and navigate to Purchase>Usage Bundles.
"Thank you for using RingCentral!"

What is this included SMS allocation? I have had RC for over 5 years, and have never had anything like this.

Can anyone shed some light on this issue?

Thanks.