A few on here have said they paid by bank transfer. I think dealers are reluctant to take card payments, especially from Motability as they make so little. They could be charged up to 3.5% on your payment if you use a credit card.
Imagine taking a credit card payment on a £7k AP, that’s the dealership paying for you to have a car. I can see their point. 2 days is enough time to get the transfer, have their accounts person look at the bank and identify the payment then have that verification in your file before you turn up. It’ll save you a little time on the day or give you a little more time being shown around your new car.
I'm Autistic, if I say something you find offensive, please let me know, I can guarantee it was unintentional.
I'll try to give my honest opinion but am always open to learning.
Mark