Interesting and thanks for your information. I'm pleased you were tested, examined and received medication that was obviously effective. I'm guessing they accepted your case was an 'emergency'. Therefore, everyone regardless of residential status is entitled to free treatment. If they hadn't, they might have moved heaven and earth to get you out of the door without spending any money, telling you to go to your GP. The fact you'd told them you weren't registered with one may (or may not) have made any difference. We shall never know that.