Privet.
Believe me is not fun for me to ask about this issue again and again but what I can do.
I wanted to say to a client: "If you want any information don't hesitate to call me"
I said:
Если Вы хотите какую-нибудь информацию позвоните мне.
I used какой-нибудь instead of какой-то because it subjunctive clause. But honestly I don't know why какой-либо or любой will not also be appropriate.