Had 2 calls from a company 1 yesterday and 1 today,something to do with offering N.H.S Staff a discount.
Said I would offer a discount,but not paying anything,to offer that though,phone went dead also 
Scally scum
The nHS one might not be a scam, I get emails daily from an NHS service with various offers, most of them from big companies. I think there is a company that sends out offers to all NHS staff (100,000s of employees)
They are normally organised on behalf of individual trusts rather than the whole of the NHS, I took one out where each member of staff received staff handbook with advert in and a gold discount card.
Wife worked for the trust and never received card or handbook company blamed personnel I explained I paid them not personnel got nowhere,contacted a few companies in handbook who had no response whatsoever