Data, rolling over & bolt-ons

[ellymoo]

I thought that my data rolled over from month to month but it looks like only bolt-ons roll over. Can someone confirm this please? Also how do they know that I have used that data and not the data from the following month? (If that makes any sense)

I am on pay monthly on a standard tariff (not business).

For example, I just bought a bolt-on of 500MB. Next month let's say 100MB rolls over so i wind up with 5GB and 100MB of data. I only use 5GB of data the following month. What happens to that 100MB data - does it roll over again or do they assume that I used it first and then not carry over the 100MB data from my monthly allowance?

Thank yo.

[pgn]

Guide: My O2 - Bolt-ons and Guide: How does O2 Refresh work? will help explain what happens, @ellymoo - and welcome to the O2 Forum.

[MI5 · Accepted solution]

@ellymoo 

Only bolt on data rolls over and any roll over data is used first the following month.

[ellymoo]

Thank you both for your replies.

[MI5]

You're welcome @ellymoo