I get the feeling the whole area is a minefield - except you can't hear it when you step on one.
Mrs BigJohn's hearing is a bit ropey, probably as a result of too many gigs standing by speaker stacks in the 1970s.
She's been for a "free hearing test" at Boots and of course has been told she needs a very expensive aid. Looking around I can now see a load of places specialising in these so I am getting the feeling there's a lot of profit to be made and no guarantee that the pricey ones are going to be any better than mid-priced ones.
How can she get an independent opinion on what type is required and what she should be paying?