I had to return to the UK last year, after 17 years working in the US. However, I have not been able to revalidate because everyone I trained with has stopped practicing and I couldn't find anyone to act as a confirmer. I talked with NMC and their only suggestion was to sign up for a return to practice course which I decided against. I gave up eventually and work in a call center now, pay is about the same but it is such a waste of my training.