To market products and services</strong>, including: <ul> <li>telling you about a new service that we think may interest you</li> <li>checking what you're interested in or eligible for, so we can offer (and develop) relevant products and services, and surveys</li> <li>understanding more about you and O2 customers so you only receive marketing which is of interest to you and so we can find and attract new customers who have similar tastes;</li> <li>helping build effective and targeted marketing campaigns to you and similar audiences;&nbsp;</li> <li>sending you information about our products and services (or those from selected third parties we think you'd be interested in) by phone, post, email, text, picture message, online banner advertising, or other ways. For some of this marketing activity we need your consent and, in those circumstances, we will only send you messages if you have consented to receive them.