All eligible points will be redeemed into rewards at the applicable market price of the crypto of your choosing, at the time of disbursement (subject to applicable fees).
The lower the price of crypto at time of payment the more crypto you will receive, while the higher the price, the less crypto you will receive. After the crypto of your choosing is credited to your account, the value of your crypto is subject to the price fluctuations of crypto in the marketplace.
If the market price of the crypto of your choosing goes down, then the value of your crypto will decrease, but you will still own the same amount of crypto that you earned with your rewards. And when the market price of the crypto of your choosing increases, the value of your crypto will increase.