My sister and her husband separated amicably around 6 years ago after having been married around 3 years. They married in England but went to live in Greece shortly afterwards. About a yr ago, the husband returned to the UK and is getting married this week. My sister has no issue with this but has never signed any papers or received anything about a divorce. Whenever she asks, he ignores her and doesn't reply to messages. The solicitor who was handling the divorce now says he isn't so my sister has resorted to emailing the local court for answers with no success. Could he have divorced her without her knowledge? He has her address and knows how to contact her. What should my sister do next?