A minimum spend of £10 is required to earn one stamp. One stamp per customer per visit. Rewards are earned with stamps 2 and 6 and can only be redeemed Monday to Thursday, excluding the month of December. Cannot be used in conjunction with any other offer. A drink must be purchased when redeeming a free dinner. Only one reward per customer, per visit will be accepted. These rewards are subject to availability and COSMO restaurants reserve the right to withdraw or alter them at any time without prior notice. This COSMO loyalty card has no cash value. Rewards are valid at COSMO Derby only.