How does one prove they wrote and satisfied the requirements within 30 days? I actually currently have a situation where my HOA claims I have violated covenants, but there's an architectural review committee one can write to for exceptions, and the covenants state that if no response is received within 100 days the exception is automatically approved. However the committee members have a habit of cancelling public meetings, ignoring emails, and their other employers are very good at deflecting attempts to contact them on committee business. I'm at their mercy to prove that I qualify for an exception. Same problem. In hindsight, best I could have done is prove I sent some mail to the right address on a certain date. That's it.