Does anyone know…

How I can find a
Previous follower on here ?
Just some context I put a post up a while back specifically asking a question, by that I mean to add me only if you fit requirement’s however when I tried to view the post some time later someone had followed but now I can’t get into account and it was on my old phone. I can see notification then it goes off so I go back a page and screenshotted it before it went off again.
1. Is there a way to find this member and inform it was me from the post ?
2. Would it be better to put a post up with the followers name in it ?
I’m stuck with what to do……
(Post wasn’t anything wierd or bad but it was very specific)

If you tag them in a thread (i.e. type an @ sign, start typing their user name, and then pick it from the list of matches) - like @Downtoearth99 - then they'll receive a notification that they've been mentioned and can respond as they see fit. (You'll know if you've tagged them correctly as their user name will be underlined, as yours is within this post.)

Tried won’t work unfortunately.

Are you using TSR's web site or app?
If the web site:
• On what type of device (Windows laptop, Android mobile, etc.)?
• What web browser (Chrome, Edge, Safari, etc.)?
If the app:
• On Android or Apple?
• What version of the app?

Using the app
iPhone 15