Approval letter or Ceremony letter?

[gbpmatrix]

Dear Members and Mentors,

I have received a letter from my council saying " Invite to attend your Citizenship ceremony on ….. "
1. Is this the ceremony letter?
2. Will I get another approval letter from Home Office? On the letter received from council it says I need to bring " Your HO invitation letter for receiving Citizenship.

Could some one please advise if possible. Thank you in advance for your valuable time.

Kind Regards,

[mrgs1]

Some receive an approval/ Ceremony letter with the contact details on to book your Ceremony, and some get approval letter and informed a Ceremony invite letter will arrive shortly, I've never heard of council sending a date to attend?