eMail offer is also just one month at a time…
NOW Sports Membership offer: Offer ends 31/12/2022. Offer valid for the named recipient of this email only. £17.99 a month for 6 months. Thereafter membership auto-renews at standard price (currently £33.99 a month) unless cancelled. Cancel anytime. Offer applied via Voucher code. 47% off NOW Sports Month membership: Saving based on comparison with current monthly price of NOW Sports Month Membership (£33.99 a month). Offer not available to customers with an existing NOW Sports Membership offer, unless you are in the last 30 days of your offer. One offer code per person and can only be used once. There is no cash alternative to the code, all codes are non-refundable and non-transferable. Not available with any other offers. Offer lost if you cancel your NOW Sports Membership before the last month of the offer period.
Interesting, the one I have seen says this:
NOW Sports Month membership: 6-month minimum term applies. £17.99 a month for 6 months. After 6 month offer period, NOW Sports Month Membership auto-renews at standard price (currently £33.99 a month) unless cancelled. Cancel any time after minimum term ends.