Offer is valid all day Monday to Friday, excluding month of December. Offer is not valid on Bank Holidays, School Half Terms and Valentine’s Day. Offer only valid with a telephone booking when made at least 24 hours in advance and must quote ‘10% off Derby’ when making the booking. Please note that we have a limited number of seats available per day for the offer. Offer is for food and drink. Management reserves the right to alter this offer at any time. Cannot be used in conjunction with any other offers. Offer is only valid at COSMO Derby Do let your server know of this offer when seated and present your Season Ticket when paying the bill to get the discount. Each valid Card/ID bearer can book and enjoy the discount for a party up to 4 people.