Some suppliers accept DC. The card must have a MasterCard or VISA logo and your name embossed (raised) on the front. It cannot be a pre-paid card.
There are two ways to view which supplier accepts DC from a Tablet, Laptop/PC: (1) Next to each car photo is a link entitled IMPORTANT INFORMATION, click this link to view conditions. Try a few different suppliers as they do vary. CASH is not accepted: (2) On the search results page (where the available car photos are displayed), down the left-hand side menu at the bottom you may see a tick box, to filter out suppliers who do not accept Debit.
From a mobile:-
On the search results page (where the available car photos are displayed), at the top of the page you see a blue “ Filter “ button, click on it and a choice of filters is shown. Click on the filter option “ Cards accepted at pick-up “ (if available), click “ Both Credit and Debit Cards “, click “ Done “, finally click “ Apply “ to filter out suppliers who do not accept Debit.