Registering a cokezone account gives you 7 points [i think]
answer the question of month gives you 2 points
each entry cost 2 points
I made 5 entries and got 2 pounds already
you can also get 50p from quidco http://www.quidco.com/coke-zone/
Terms and Conditions
Instant Win Free £1 mobile credit
1.This instant win is open to consumers aged 16 (sixteen) years or over who are residents of Great Britain, Channel Islands and the Isle of Man only, excluding employees and their immediate families of Coca-Cola Great Britain, Coca-Cola Enterprises Limited and anyone else professionally connected with the promotion. Please make sure you have the permission of the bill-payer before participating.
2. To participate you will need to have a GB Pay As You Go or Pay Monthly SIM card from 3, Asda Mobile, O2, Orange, T-Mobile, Tesco Mobile or Vodafone, as well as a Coke Zone account and a sufficient point balance. Each entry costs 2 points which will be debited from your balance on entry. There is no restriction on the number of entries any member can make. To get an account please register. If you already have a Coke Zone account you will need to log in. To get points, please enter the codes please enter the codes printed on specially marked packs of Coca-Cola, diet Coke and Coke Zero made by Coca-Cola Enterprises Ltd.
3.The Instant Win will run from 2/11/09 until midnight on 8/11/09.
4.Winning moments have been randomly allocated under independent supervision throughout the promotional period and winners will be informed by SMS within 7 days.
5.There are 2,000 Prizes consisting of £1 of airtime from 3, Asda Mobile, O2, Orange, T-Mobile, Tesco Mobile or Vodafone. There are no cash or other alternative prizes available.
6.The Promoter reserves the right to amend, alter or withdraw the Instant Win as necessary due to exceptional circumstances outside its reasonable control.
7.To the fullest extent allowed by law, the Promoter accepts no responsibility for any loss which is not forseeable or arises as a result of the use of the prize.
8.The names and counties of the winners will be available on request by sending a stamped, self-addressed envelope to: Coca-Cola Win a FREE £1 mobile credit Xmas, Carlson Marketing, Carlson Court, 116 Putney Bridge Road, London, SW15 2NQ within three months of the final closing dates.
9.The Promoters decision regarding all promotional matters is final and binding.
Promoter: Coca-Cola Great Britain, 1 Queen Caroline Street, London, W6 9HQ.