Those with an O2 contract should have received advanced warning of lack of allowance data being available between 13th and 27th September.
O2 sent out SMS saying:-
O2: We're improving our billing system on 13-27 September 2008. During this time you won't be able to check your bundle balance through 21202. Sorry
From O2-UK
However, what they did not tell us is that you will likely experience difficulty checking it any other way too!
There are conflicting posts on other telecoms sites saying that the O2 website is playing up also.
Is anyone else getting this error with O2 "View my bill"
"We're sorry but this service is temporarily unavailable...
We're sorry but we're experiencing a few technical problems that we're
currently investigating.
Please come back and try again later."
I've had this for the last two days.
or:-
No problems here, it logs in OK. But this message appears before getting to
the bill:
"Sorry, but we're in the middle of improving our billing systems to give you
the best possible service.
From the 13th to the 27th of September some items on My O2 may not be up to date, an example would be the number of minutes left in your allowance.
And if you change your tariff, we won't be able to show this on My O2 as
quickly as we'd like. Please bear with us, we expect to finish the work and
have My O2 up to date on the 28th of September."
The allowance info and recent charges are not up to date.
So O2 contract users beware, and try to keep some record of the calls and texts that you use.