I rec’d a response to my ‘complaint’. It has been escalated so we’ll see if they do use the date of purchase last year, not when the scene came in - last month. They confirmed that in my case I have 2 years 1 month I still have 42 days. There doesn’t seem to be a maximum booking time but they could easily regularise that by saying the car isn’t available after say 2 weeks. They confirmed the RX is on the list - they said that all Hybrid models were available except the LS, LM & LC models.
Whilst I agree with John’s point that it’s not a good look, it would have looked better if they had done the upgrade before releasing the car (= better reviews) and included Reserve as an option to drive a different car in the range - disguising the real reason.