I want to tell you the true life experience to highlight what is the importance of a lawyer notice. Just before I do that, let me ask you a question: "Do you know what is the huge difference between a lawyer notice and a court order?"
Well, try to find out the answer for the above question. It will show you what is the stage at which a court issues an order. Then, you will appreciate the difficulty of getting it, the importance of it in the paradigms of justice.
Now, coming to where I left, experience suggests that at the time of the order one should insist that the judge goes over one more line: "Compliance of this order be filed with this court within this, this time. Else, it will be treated as contempt of this court and suitable action will be taken". Do you know that if this line is not included in your judgement i.e. court order, thick skinned opponent, the way you seem to be confronting will take you, justice for a ride; resort to more illegalities and almost obscure justice per se!
My friend, you seemed to have taken quiet a lot of trouble in getting a lawyer to issue a notice. Good for you. But, your opponent seems to be a thick skinned rascal. Your word 'Institution' suggests 'College'. If I am right, then the dada of that college is chairman or something like that. Take it as a bet, HE (forget about the institution) will not reply.