Examples of writing congratulations letters:
Congratulations on your promotion to Vice President of Seb Bank.
You have done a fine job there for many years, and you deserve the recognition and responsibility of the position.
Best wishes for continued success in your career.
It was with great pleasure to hear of your promotion to (position). Your success is just a confirmation of the fact that you always excelled in what you did. You are very lucky but, above all, a woman with a great heart that fights for its objectives.
Wishing you all the best with your new role.
Hearty congratulations on your recognition! All the sacrifices that you have made in your job paid off today. Commitment, confidence and accomplishment are the things that I've always assumed to be synonymous with your character.
Hope you'll do very well in this new post.