Contact
One inbox, read by the person who builds the tools.
Write to textgenlab@gmail.com for corrections, bug reports, style requests and business questions. If a generator produced something wrong, include the text you typed and the style you picked: that is everything needed to reproduce it.
Response times
TextGenLab is run by one person, so replies can take a few days. Reports of wrong output jump the queue, because accuracy is the whole point of the site.
What not to send
Please do not send passwords, payment details or personal documents. Nothing about a text style question ever needs them.