No one (NOONE) is a customer support number that helps customers with product questions and problems. The company is headquartered in the United States.
No one (NOONE) phone number.
There is no one phone number.
No one (NOONE) support.
This sentence means that there is no one who supports what you are saying.
No one (NOONE) customer care.
I have never received any customer care from this company.
What is No one (NOONE)?
No one is an anonymous, uncountable noun meaning "no one".
No one (NOONE) headquarters.
This is not a sentence.