A Flexi-upgrade is open to all Pay monthly customers with Red Essential, Red Extra and Red Entertainment plans. It means you’re eligible to upgrade after 6 months with an early upgrade fee.
A Flexible upgrade lets customers with a 12-month SIM only bundle upgrade to any Vodafone Pay monthly phone plan after 3 months. If you decide to upgrade, we’ll cancel your 12-month SIM only contract with no cancellation or upgrade fees."