I have alerts setup on my account that email me to provide insight into how much voice, data, or messaging resources I've used.
I think it would be really helpful to see the date at which these resources reset, the billing end date, I think, right in the alert email.
Something to this effect:
"Your Ting account dashboard is setup to alert you when your account
exceeds ___ megabytes of data in monthly usage.
At the time this message was sent, your account had used ___ megabytes.
This amount will reset on your billing date (//), in __ days.
The Ting Team"
I think this will make the alerts much more useful at a glance.