I am repeating myself from an earlier post, but read the Wiki page: https://en.wikipedia.org/wiki/Wells_notice

<<The notice indicates that the SEC staff has determined it may bring a civil action against a person or firm, and provides the person or firm with the opportunity to provide information as to why the enforcement action should not be brought.[2] The person or firm is generally given 30 days to file this response in the form of a legal brief considering legal and factual arguments as to why no charges should be brought against them.>>