I have an EV and the Ohme charger from Motability. It took about three months to get the charger but this was because Ohme’s contractor tried to charge additional costs that I felt were outrageously over priced and did not meet my needs. The initial order was put on hold whilst I arranged appropriate work to be completed myself. The process then restarted with a different contractor and was completed (very professionally) within three weeks.
From many comments on the forum, it seems to depend on your assigned installer as much as any specific needs for your property.