Tambo:
While I fully recognise that any charity only has limited funds, and must therefore have rules about how they distribute their funds, I find the way that PDSA do things a little odd.
They have a strict 'post code' rule so, if you don't happen to live close enough to a PDSA centre, you can't get free (or discounted) treatment for your animals. An elderly lady (with a very limited income) that I know dedicated a great deal of time to helping in one of their charity shops but, when she really needed it, she found that PDSA couldn't help her at all with providing treatment for her dogs (or helping her with her vets bills) because she didn't live in the right area.