I don’t understand why order delays would eat into the 3 year of data, surely that time starts from when either the car leaves the factory or the dealer either way the time loss would be negligible.
I see someone posted a link on some forums that you can buy data allowances out of contract but pricing was extortionate like £15 for 2gb. Better off just using your phone as a hotspot if it comes to it or use a personal hotspot device with a data sim, if it comes to it