apple iphone 4 black 16gb. mint condition locked to vodafone !

Hi, im looking for a quick sale for my iphone 4. Its black and locked onto vodafone. its mint condition. comes with the phone and charger and 2 spare cases. looking to sell for 250. no offers please. quick sale needed as i need the cash. weekdays during working hours i will be based in moorgate london. after work i will be in hitchin, hertfordshire. and one day on saturday i will be in colchester essex