Reward redemption

Hello - I received and redeemed an xfinity reward for a subscription to perplexity Ai pro. It was redeemed around Dec 31, 2024. At the time of redemption, I read and took a screenshot of the disclaimer, which states:

"Code valid for eight (8) 12-month subscriptions to Perplexity Pro."

Please advise how I redeem the additional seven (7) 12-month subscriptions to perplexity pro - assuming the disclaimer is legally binding.