Tesco Clubcard offer a payment option where you can redeem points and then pay the remaining balance by card via a website link that you will receive in an email from Tesco Clubcard.
For more information please visit the Tesco Clubcard website:
https://secure.tesco.com/clubcard/vouchers/the-lastminutecom-london-eye/UK-009792.prd
Please note this offer is only available against Standard London Eye tickets, and cannot be used in conjunction with any other offer.