If you are in an IVA then you will need to seek the permission of your IP to take out any credit.
If it's ok then you could try Moneybarn or Carloans4u.
Sharing from experiences of dealing with debt
The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.
Bob Marley. http://kallis3.blogs.iva.co.uk
