I suspect a credit card is required then you can cancel before the trial ends
Start your free Lightbox trial this weekend: everyone who signs up between Thursday October 23 and Monday October 27 will get a voucher code to use on a free Hell Pizza.
Labour weekend Hell Pizza offer terms and conditions
Sign up between 12.01am 23/10/14 and 11.59pm 27/10/14 and receive an e-code voucher for one free Double Standard or Gourmet pizza at Hell Pizza. Voucher redemption is via online orders only. Pick up only. Voucher expires 30/11/14. Lightbox terms apply.
Can confirm that this is required.