No. It is 'Please note that...'
Yes, it is correct.
be rest assured
No.I'm assuming you're asking if that's the correct grammar, and it's not. The correct phrase would be "May I please go?".
refer to the above subject
It is incorrect because of redundancy. It is correct to use the words separately like "Please be assured..." or "Rest assured that..."
Please re-phrase this question. It is not grammatically correct.
"Please advise" is used at the beginning of an imperative sentence: "Please advise when I receive an answer to my question."
Please correct me if I misunderstand you, but I believe your answer is 'none'.
"Please advise." is not proper grammar. The word "advise" is a transitive verb that must have an object such as "Please advise me."
The phrase noted with thanks basically means that you are thanking them for bringing something to their attention. It is not a phrase that is used very often.
we note that
Yes, the phrase "please see attached letter" is grammatically correct. However, it might be more formal to say "please find attached the letter" or "I have attached the letter for your reference."