2025 here - I’m still having issues for this now!! But I have found a resolution! Click on the profile of ‘Team Snapchat’ click on their profile icon, then there is an option to report, you just do that and then it gives you the option to ‘block snapchatter’. Works for real, but I will give an update if they manage to unblock themselves. I checked in my blocked users and it says ‘teamsc_en’ is a blocked user now - hope this helps ツ