If you are not on any existing sports offer, then using your example above the 3 month sports pass will be from the 24th February (date of purchase) and expire on the 24th of May at the time you purchased the pass offer.
Not aware of any mouth watering NowTV one month sports pass deals at the moment, apart from the 4 month at £25 per month on the NowTV website or the standard one month sports pass gift cards from places like Argos or Currys at £25.
If you are still on a one month sports pass, then maybe cancel it early to see if NowTV will offer you a retention deal offer to stay (may or may not work, where if you cancel early with less than 30days left you will still get the full duration of your existing month sports pass).
Been looking on HotUK deals website, but haven't seen any eye popping sports pass deals for a while to be honest.
Perhaps other forum members know of any decent sports pass offers ?
I don't know if this will be any interest for you, where Currys website are doing a Summer Clearance deal at the moment for 3 months Sports bundled with a NowTV stick for £60.
If i do come across any cheap one month sports pass voucher codes in the future i will post back here on the forum.
Anyway here's the link to the Currys deal which might be useful to somebody who reads this post 😆.