Hello and thanks for posting,

I don't think anywhere in the UK will take them, as the NHS tend to issue new ones to new patients.

However, if you could post them, there is a UK charity that distributes these to other countries, such as Africa.

https://www.nicolajane.com/nicola-jane-charity-donations/

I hope that this reply is helpful, 

Best wishes,

Vanda

Thank you Vanda, I appreciate this, I will send on.