Link your device to start tracking your fitness activity.
Select 7 friends to form a team of 8 (including yourself).
Clock 250 Vitality points from trackable fitness activities within the challenge week (challenge starts on Monday and ends on Sunday).
Encourage your 7 team members to also clock their 250 Vitality points (from fitness activities) for that week.
Receive your voucher once every member in your team achieves the challenge target of 250 Vitality points.