The letter is quite self explainatory - they have asked you not to send originals until and unless they ask for it. and they are asking you to submit original ref letters.
Dear All
I have received a letter from the immigration asking for updated details. In the letter in the beginning they have mentioned NOT TO submit any originals unless specifically requested, since they would NOT return them to me.
In the latter pages of the letter, they have asked for ORIGINAL reference letter of work experience.
Should I send them original or not ? Should i be prepared that they would not return them to me ?
Thanks