I found Haldane Bengals in Rushden, Northamptonshire, however, I cannot find any contact information for them. They have kittens posted here:
https://www.pets4homes.co.uk/users/535256Bemadonna Bengals
https://www.pets4homes.co.uk/users/bemadonnabengalshttps://www.pets4homes.co.uk/users/99675These appear to be within your 30 mile requirement.
Note, I am cautioning you as these are ads placed on Pets4Homes and I cannot find any information on these "breeder." Some claim to be TICA registered -- so please do your research.
House Of Elliott and Bemadonna are listed on TICA's list of registered catteries. I have not heard of any of these catteries nor do I have any of their cats in my bengal database and I have over 72,000 records in my database.
Here is a link to several UK bengal breeders.
http://www.thebengalcatclub.com/breeder-list.html Also, Glitterglam is one of the top UK breeders.
http://www.glitterglam.co.uk I have 570 records on Glitterglam.
Once you've done you're research and have narrowed it down, I will be happy to give you any info I have on the potential breeders. I have been working on my database and research for over two years.