Unfortunately I'm afraid it's too late.. These people are in and nothing is going to get them out.. There highly automated, and will send out
page after page at a click of a button. In some cases it's completely automated, once they have programmed to selected forums. Thinking you can somehow block there IP addresses, , is a waste of your time, It's been reported elsewhere that they have hundreds of active IP's simply waiting to be used.
It's a bit like trying to beat "Wack a Mole"
I know of one forum [the subject is unimportant ] where they shut down the site for 6 months , and when they reactivated it they where back to
where they were before the shutdown. The site no longer exists
Try loading TEMO into a search engine, The selling site is massive,
https://www.temu.com/a
In short the ships already sailed, and nothings going to bring it back