The reason they don’t tell you before is so when you turn up to collect if you notice the cars there in front of you and they know most people at that point will take the car.
Theu know if they tell you in advance you’ve got time to weigh up your option get legal advice, order a different car. Why these manufacturers are allowed to break a contract with no co sequences is beyond me.
If it were me it’s a real breaker when you’re sitting there in pain all the time often that heat is the only thing that gets you thru the journey and yes you could add a heated pad or something but so could the dealer you paid for a spec they need to deliver it.
One thing for sure I’ll be checking every detail when I next order a new car, well assuming I can find one that suits that doesn’t cost thousands