I have put together a summary of how to get the most out the the Vodafone roaming deal for non vodafone/pay as you go customers, by adding one of the following packages;
£10 = 100 minutes and 300 texts.
£15 = 200 minutes and 600 texts.
£20 = 300 minutes and unlimited texts
1) Order your free SIM (see link on next post). When you receive your Sim card you should register it by calling 2345.
2) Topup your card with a voucher or bank card.
3) Then sign up for the Passport promotion by texting PASSPORT to 2345
4) Just before you go abroad, convert your topup to one of the above packages, by calling 2345.
(Packages only last 30 days, so you don't want to convert your topup until just before you need to use it.)