I'd wait to do that.
I think a week is fine, you should always remember that a flag is final.
They online and make some update on the twitter about CSGO at 15 Jully 2020.
I think the victim already can put them flag since there is no reponds at all from them but they can make some update for their social media on twitter. Creating a flag and inform them on twitter will make them online maybe XD.