View broadband Usage disappears at midnight at end of period.

[#1]

I keep a running daily record, on an Excel SS which calculates how many mb I have used, and how many mb I will probably use in my billing period.
Two columns, midnight to 8am, 8am to midnight, plus speeds (which are pretty constant)
My present (first) period ended last night, as I went to check my usage just after midnight, the tables had already rolled over to my next period, and deleted all figures.
Fortunately, I do tend to update mb during each session, so wasn't far out on actual mb. (Gb)
Previous period summary showed me that, which appeared later on today. (Figures matched throughout month)
Just something to be aware of.

[#2]

if you look at the usuage history, it shows the totals for the previous three months

[#3]

As I said, that didn't appear until well after I first posted.

[#4]

Thanks for your feedback PlusComUK.