Please provide your telephone numbers as we may need to contact you about your order measurements and delivery. This information is not mandatory, but we may not be able to process your order without it. Personal information which you supply to us may be used in a number of ways, for example for fraud prevention, audit and debt collection. We may share your information with, and obtain information about you from, credit reference agencies or fraud prevention agencies. We will not disclose any information to any company outside Opticolour except to help prevent fraud, or if required to do so by law. For further information on how your information is used, how we maintain the security of your information, and your rights to access information we hold on you, please contact Opticolour.