You might be on to something, I have just emailed the dealer asking]
^T&Cs apply. Subject to status. 18s and over. Guarantee may be required. Hyundai Finance, RH2 9AQ. All offers are subject to availability, while stocks last and are only available to private retail customers on new cars which are paid for and registered between 1st July 2022 and 30th September 2022 in the UK and sourced through Hyundai Motor UK Ltd or its authorised dealers. Offers are not valid in conjunction with Affinity. Hyundai Motor UK Ltd is a credit broker and not a lender, and will only make introductions to Hyundai Finance RH2 9AQ.
there terms contradict them selves, the t&c‘s just state registered and paid between 1st July and 30th sept, I ordered in March and picked up 11th July, so worth a try,
many thanks for pointing this out