Add a field for holding the data from the comment on the web site.
Also capture the comment field (it wasn't even transmitted before).
No semicolons in Go.
Fill the City field with the city, not the Street.
Better error handling for templates. Initialize the MemberData member.
Display captured data and at least the generic error message.
Fill the collected data into the print template.
Mark issues 2 and 3 as fixed.