Operations Manager,
I assume a recorded telephone call will not reveal what services you have performed.
I have no interest as to whether a contract exists or not, I am simply asking what services you have performed.
If you do not wish to divulge any more or enter into more dialogue actually answering our questions, then I shall assume, until proven otherwise, that no services have been performed on your part.
May I also suggest that you could make a great political speaker, they're always great at avoiding questions.