Fashk Nikah

Assalamu Alaikum I have a question in regards to obtaining faskh Nikah. I am separated from My husband for over 5years-and he refuses to give Talaq or Khula or even civil divorce and I was advised to go through Shariah Council for Faskh as he is not co operating. However I am being told different opinions some say Faskh Nikah obtained through Council will not be valid as they are many operating providing services of Faskh and taking a large amount if money and it is just a money making scheme and only if husband signs the papers then the nikah is terminated. Please can I have any reference to this and whether it is permissible to obtain Faskh through reputable council and the validity of it as this is the only option I have after trying to mediate through family. Jazakallah Khair