Hire Cars in London

Cash is not accepted by any supplier, sometimes a Debit Card is accepted, read this:-

Some suppliers accept Debit Cards. The card must have a Mastercard or VISA logo and your name embossed on the front. It cannot be a pre-paid card. To view if a supplier accepts Debit Cards 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:

The letters must be embossed and with Visa or Mastercard logo?

Yes, but search for a supplier who does accept debit card at that location. Follow the instructions from few message above..