Classic Parade review: Hire vehicle not supplied and no refund has been given

We hired a Lamborghini for my sons prom on the 28th June, we were told they would contact us 24 hours before with the arrangements to deliver the car, we had paid the full deposit and the cost of the hire 12 days before and thought everything was in place. On the 27th June we had not heard from Andrew Brown so my husband emailed him and he replied with there has been a supply issue and he won’t be able to supply the car, we then emailed back asking for a refund only to be told he was having issues with his bank and couldn’t process refunds at the moment. We started looking into this company only to find out that they are scammers. We have took legal advice and sent a letter before action and we have had no response and no refund to date