It's been claimed by some that there has been a "stem cell" treatment to deal with knee injuries, and at least one person has claimed to have received such a treatment, on his Private healthcare scheme, some years ago.
For various reasons I have been looking into such treatments, and it turns out that in late 2017, this treatment was only available, and even then only experimentally, on the NHS.
So if that is the case, how would someone on Private healthcare have been able to have an Experimental NHS procedure funded by his insurer? That's not how Private healthcare works.
Indeed, in 2017, only two hospitals in the UK offered this treatment.
It's curious what people claim, isn't it.