I didn' get a reply email but I did send my completion code and my worker ID. Wonder if I should follow up?
Sounds like they've got a handle on it and are expecting to have to hand sort them. I'm sure your email will suffice. If I were you, I'd let them focus on approving your HIT rather than responding individually to everyone who emailed. If you emailed them, wait until it approves or, at least until they start approving/rejecting. I send an email every time I have to enter my AMT ID and message the code. I only get responses about 30%. Of course, I'm not really expecting a response, just an approval. Those come 99% of the time in these cases.
Personal emails are assuring but, bottom line, you just want to know that they have someone working on the situation, which has been confirmed by someone else's email.
tl:dr I'd just wait a bit and see. Should be fine.