Do I become Topshop online member automatically if I’m a F3 member? November 10, 2020 02:07 Updated No. F3 and Topshop online are separate memberships. Become Topshop online member today and enjoy the member benefits. To register as a member, please click sign up. Related articles How do I return to refund? Can I use the voucher code at Topshop stores? What are Topshop online member benefits?