On Mon, 06 Aug 2007 11:22:47 +0100, Liam Hall <LiamL@bb.net> wrote:

>Not sure why they are doing this, and they seem to have it quite well
>hidden, but I found it and it works.
>
>So grab it while you can.
>
>
>http://www.o2.co.uk/termsconditions/currentpromotions
>
>Number One terms & conditions
>
>The Number One promotion is open to new and existing O2 Online Pay &
>Go customers who opt into the promotion between March 29th up to and
>including September 30th 2007 (“the Promotional Period”) subject to
>the terms and conditions below.
>Eligible customers who opt in to Number One during the Promotional
>Period will be entitled to up to 500 minutes/month of free calls to
>their one nominated O2 UK mobile number for up to 3 months from the
>date that they receive a confirmation text message from O2, subject to
>a minimum top up of £10 in the month prior to the date of opt in and
>each subsequent month during the 3 month promotional period.
>Customers may change their nominated number once every 30 days by
>texting CHANGENUMBERONE followed by the new O2 mobile number they want
>to change to, to 21300 free.
>To opt in customers must send a free text message with the keyword ONE
>followed by their nominated number to 21300.
>Customers will receive a text message from O2 confirming when they
>have successfully been opted in to the promotion.
>Customers who are currently receiving the O2 Long Weekend free texts
>promotion (available for opt in between 5th January 2007 and 31st
>March 2007 and lasting for up to 3 months subject to £15/month top-up)
>can only opt into this Promotion once their current O2 Long Weekends
>promotion has expired.
>Existing customers on the Free Best Friend promotion currently
>receiving free calls to one UK Mobile number are not able to benefit
>from this promotion.
>Eligible customers who do not top up by a minimum of £10 in their
>first and second month will not receive the Number One benefit in
>their second and third month. A reminder text message will be sent 48
>hours prior to the end of your first month and/or second month if you
>need to top up.
>Free calls made as part of the customer’s Number One allowance will
>not count towards the first three minutes of the day rates for
>customers on Pay & Go Talkalot
>Any calls made in excess of your Number One Allowance will be charged
>at your standard rates. When your allowance runs out you will receive
>a text message within 4 minutes to notify you that your free allowance
>has run out and you are now being charged for all calls.
>Where a customer already has a Bolt On or free allowances such as Talk
>Anytime that includes voice calls, then the Number One Allowance will
>be decremented first for eligible calls.
>Unused Number One allowances cannot be rolled over from one month to
>the next.
>O2 reserves the right to amend this promotion at any time. Any
>changes will be posted on the O2 website at www.o2.co.uk
>Customers may only opt in to this promotion once. If customers opt out
>of Number One and then opt in again within the Promotional Period the
>request will not be accepted.
>Customers who disconnect and reconnect for whatever reason during the
>Promotional Period will not be eligible to opt in to this promotion
>for a second time.
>After expiry of the three month offer, standard call charges will
>apply.

To check your balances for o2 PAYG

4444 (free)
option 2
option 2

this gives you balance, bolt on balances, free minutes/sms remaining
and o2 treat balance. It also gives you the expiry dates as well.