For what it's worth, I had to pay even though I moved to Sweden.
I had to inform them every year of what I earned and provide proof every bloody year. Their website, customer service and general ability to communicate and help me pay were absolutely atrocious. And awful hold music is on a 30...
I've heard lots of "Just never pay it! It eventually runs out and you won't have to pay a penny!" stories.... I'm not sure how many of them are true.
I would give them a ring and ask anonymously.