More information on the Strava voucher can be found here: https://lecol.cc/pages/strava-challenge-t-cs, but the most important bit is as follows:
Reward & Prize Information
- Reward: Each Finisher will receive a £50 Le Col discount voucher code. The £50 discount voucher requires a minimum order of £100 (so a minimum spend of £50 with the reward applied). If items purchased with the voucher are returned only the discounted price will be refunded. The unique discount code can only be used once per person. Only one discount voucher can be redeemed per single transaction. The offer excludes the purchase of gift cards. Vouchers cannot be exchanged for cash. We reserve the right to withdraw, alter or decline this offer without prior notice.