Interesting. seems like there is some conflict. I got the number from reading the emails that were already sent, several of which were replies to an email from the FEC reading (among other things):

"The Commission will accept written comments on the request during the 10-day period following the publication of the request (no later than July 11) and must issue a response no later than 60 days after the receipt of the complete advisory opinion request, that is, by August 30, 2022."

If you feel strongly about this, email anyway. Not like they can complain about spam ;)