I'm assuming the person you replied to is referencing emails that AWS sent out on New Year's, stating incorrect forecasted usage.

Some discussion can be found on reddit https://www.reddit.com/r/sysadmin/comments/7ndlk7/aws_anyone...

not sure on exact details, but I received one as well, on a free-tier account I had sitting around with an empty dynamodb table that was showing very high projected usage. it was enough that I logged in immediately thinking that account had been hacked.

nope, still empty table, deleted it and went to bed. glad I wasn't the only one who got that.

Same here. Mine was on standby so I terminated it.

I wasn't sure what was going on so I nuked everything cancelled my account and will hope for the best.

Amazon sent me an email this morning (Jan 3, 2018) to say I have a bill but I had already cancelled my free account. I can't see what I owe (hopefully zero dollars) because my account is now non-existent.

One tiny Ubuntu instance I barely used and then put on standby. Then terminated.

Ugh :(

Same for me, a dynamodb table I created 5 years ago with one k/v pair (test=foo) and never accessed since...

I got an email that I was going to go over usage, and then another minutes later that I was over. Logged in, only had a lambda sitting doing nothing.