If you don't get an unblock, try writing an e-mail and saving it on your computer explaining the situation, refill the form and then wait for a response automated message at your inbox.
Copy and paste it as a response as quickly as possible, or they might close the issue.
Gregory's Server
@pixelfed
I recomend to you filling the following form: https://help.twitter.com/en/forms/authenticity/spam.
If you don't get an unblock, try writing an e-mail and saving it on your computer explaining the situation, refill the form and then wait for a response automated message at your inbox.
Copy and paste it as a response as quickly as possible, or they might close the issue.
They'll probably unblock the instance.