Celebrate National Cookie Day with a complimentary cookie
In celebration of National Cookie Day, O2 have teamed up with Millie's Cookies to offer you a cookie of your choice for absolutely free.
This was posted 5 months ago 5th December 2017
and expired 5 months ago 9th December 2017.
O2 Priority members can pick up their free cookie by following the instructions on the O2 Priority website.