Hi Guest

<" The NHS round here have a drop in service where they can be sort of serviced and retuned but my father doesn't like to trouble them. ">

We have the same here. I have used it a couple of times and they are very useful. We used to be able to make an appointment but now we can go on a Friday but have to wait our turn. Not usually many waiting especially if we go early.

Cheers

Mike