I'd say lay a charge. Even if nothing comes of it, it creates a paper trail that can be found if that twunt be a repeat offender.
Also (https://www.jp-sa.org/about.asp) might be able to help.
Phone +27 (0) 11 051 6985 or +27 (0) 81 302 3694
Fax +27 (0) 86 647 3293
Email
[email protected]
Postal...