Your earnings cannot be redeemed separately as they are associated with your deposits. In order to redeem your earnings, you’ll have to redeem it along with your deposits for a virtual card against a purchase with any of the brands. However, in case you decide to withdraw your deposits anytime, all your accrued earnings will lapse/expire upon withdrawal.
Example: You deposit ₹10,000 today, and in a month it becomes ₹10,300 after 0.1% daily earnings.
Now, you can redeem the ₹10,300 (deposit + earnings) as a virtual card and shop with any top brands on Hubble. However, your earnings of ₹300 cannot be redeemed separately.