I also agree with you, the email can sometime be very repetitive. They always seem to repeat what you have said in previous email. I makes me wonder if they can see all then email we have sent of just the one that they reply to. Occasionally they also ask similar question too those that you already been asked in previous replys. If they can't see our previous email then it probably means they are relying only on notes taken by others, which can sometime be misinterperated.
It is still sometimes annoying but maybe it can't be helped.