Here is a post by Lynda Yilmaz on 3 july 2014 that I have copied and pasted from Facebook
According to the police in Fethiye (who haven't had their full orders yet from Ankara) it's not as cut and dried as the UK Embassy indicate. People over 65 WHO CAN'T GET any other insurance, or are not eligible for SGK will be let off the insurance criteria, and you will have to provide evidence that you can't get it. Not sure how THAT will work, proving a negative is not easy. BUT, since private Turkish health insurance is available for people up to 70, that sounds at odds with the 65 year ceiling and you will only be not eligible for SGK, because you have not had an unbroken year or more of residency, or because you have been refused on health grounds. My usual caveat applies to this post. This is the information Yakup was given TODAY at the Passport police. Maybe tomorrow will be different. Again apologies if someone has already posted this information.