I also want to thank everyone who helped, because it helped. At the moment, 2 telegram channels of scammers have been deleted.
https://t.me/UniJoin088 with about 12k members
https://t.me/unijoin0 with about 2.3k members
At same time, let' not forget that there's one more Telegram group trying to steal the identity of UniJoin:
I suggest to forum users to keep reporting the last group,
t.me/UniJoinHB. Since the group has ~10.000 members there are high chances to have people scammed, so please report this group as well.