Hello there. Using your in-game report was the correct way to report this happening, but you can also do it on Bungie.net through your game history, too. Our [url=https://www.bungie.net/en/Help/Troubleshoot?oid=13967]Report Suspected Cheating[/url] article has instructions for how to do that.
Awesome, I didn't realize I could report from the app's game history. Thanks for the tip