Throuble with pending authorizations

[Justin0101]

I ran this command:
certbot certonly --webroot -w $WEBROOT -d domain1.com -d subdomain.domain1.com -d domain2.com -d subdomain.domain2.com ...

Note: I need to create the SSL for at least 300 with one sub-domain each so I will need to split those domains in varios certificates as I see there is a limit of 100 Names per certificate.

It produced this output:

Error: urn:acme:error:rateLimited :: There were too many requests of a given type :: Error creating new authz :: too many currently pending authorizations.

I can login to a root shell on my machine (yes or no, or I don’t know):
Yes

Here is my situation:

First of all, thank you for taking the time to read this.

I have a problem creating a certificate for several domains and sub-domains (as seen above). I read this article but does not say when I can try again and request more certificates (various Google searches told me that I could request more after a week).

I found out a solution that says that in order to delete those pending authorizations I can do a request to letsencrypt in order to change the status of those pending authrizations ( I have not yet found an example of the request) .
indent preformatted text by 4 spaces
Question:

1. How do I know when can I request more certificates?

2. Where can I found an example of the request I need to make in order to change the status of those pending authorizations.

Thank You.