Very good - missing billing cycle start date

This is a great app with a wonderful user interface that is missing 1 critical feature. It tracks the monthly data usage and a calendar month cycle. It doesnt let you define the start/end of your billing cycle. Please end in this necessary feature.

Monthly limits and tracking dont apply if the start/end dates are wrong for my billing cycle. Once this feature is added it will be perfect.

Skallos about 4Glob - Mobile Internet Data Tracker, v1.0