Hi @randy9000,
You can add custom text to the block page at Wordfence > All Options > Firewall Options > Brute Force Protection > Additional Options > Custom text shown on block pages. Using this field, you can include an additional message for people, such as information about how to contact the site owner, in case the block was unintended. Only plain text should be included as HTML will be removed before the text is displayed.
I hope this helps!
Margaret
@randy9000 I don’t thin there is a 403 page, probably you mean a 503.
The http response Wordfence sends is 503 (busy) and not 403 (forbidden).