I'm not sure about your first question, but I guess it depends on the organization that has provided the service whether to offer the services you have on your mind. A courtesy phone is free. However, there are a few other "courtesy + N" structures that do not mean "free", such as courtesy title (an unofficial title that one is allowed to use), and courtesy call or visit ( a formal visit that shows your respect or politeness).
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.