Same as the rest of usI too enjoy my iPhone simplicity 30 day rolling contract comprising 600 minutes, 1200 texts and uncapped data, all for a price of £20 inc. VAT per month.
I am on the £30 Simplicity 1200 minutes, 2400 texts, free web and wi-fi (unlimited) with visual voicemail plus mms and texts from abroad are included oh not forgetting free ITS and voicemail!