For me, I was getting all the expected e-mails but at a 20-30 days delay.
The only way I had to know what date it should have come was that the e-mail says who replied in the thread. I look back in the thread to see what date they last replied, and it was very consistent.
Sometimes the same person has replied a few times since, which can confuse things, but there was always a reply in the expected date range.