Random person keeps joining without link?

hello, since days me and my girfriend have been disturbed by a random person named “ef” joining our rooms without sending any links to anyone else besides the two of us. We also tried to change room, also create a new one but he still appeared there. Also i don’t think it’s a bot since the first time he joined us he also changed username in “ef” and paused a video, but never talked or replied to our texts.

we are really worried and scared…please help us …

Hi… please send me the link to your room to florian@watch2gether.com and i have a look.