Fanny in the last few weeks, I have received phone calls from various hospital clinics just before 6pm. I've never had calls at that time in the past. One was offering me an appointment at 9am the following morning at my local hospital instead of my usual one!
It appears in my case they were doing catch up and updating referral lists and postponed procedures. Things seem to be moving again in the NHS..
Here in Scotland, a generic phone number seems to be the norm for hospital calls. I have that number saved as NHS, after I got a call about a procedure, while entering the caves underneath the Rock of Gibraltar. I thought it was a hoax call and ignored it. ?
It was only after the third call, I realise it wasn't a scam.
As has already been said, can you check the number?.
I always Google, Who called me?.
Looks like you will just have to turn up and hope for the best.