People being turned away, apart from one of the criteria which requires ID (such as NHS worker) makes me really cross.
If the NHS system has let you book and you have answered the Qs honestly, then you are eligible. Anyone in the centres should accept the system itself makes the judgement and not be making judgements about who is and isn't eligible.
Lots of people are already anxious about the jab and hearing people are turned away will make some reluctant to book until they have a personal invitation in their hand, which often isn't until much later and slows the process.
I have to say, if this had been me, I'd have asked to speak to the manager if this had happened. I'd have explained I input my information accurately and have travelled and would now like to have the jab and any errors in the system are not my concern. I would show my confirmation of booking and tell them I would be happy to show how I booked if they liked.
Honestly I cannot believe a 44 year old was turned away like this. I'm pretty sure that if the manager of the session was called, they would have got their jab. It will have just been someone being jobsworth who hasn't grasped that every time the rollout proceeds there is a period when the from page hasn't updated.
Really sorry to hear this happened.