Glad you asked...
Are you looking to write them about your status, hardship or something else? It would depend on what you need assistance with as to how you would address the letter. You would want to make sure that your letter is written in perfect grammar. I would also suggest maybe consulting a paralegal who may be able to help you as well.
HopeBallarte     How-To Expert
Then again, this answer might help you...
Writing a letter to immigration is a statement to the officials that asks for a specific permission to come into a country with privileges.
saroya     How-To Expert
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