All three accounts mentioned by OP have different problems but it would appear OP just made everything up in an attempt to frame these three users. For what reason I don't exactly know.
Of course anyone could pretend to be topman21 on Telegram, or any other user. There's no proof that this is who OP was talking to, if he was even talking to anyone besides himself.
@Xavi20 this is the solution to your problem:
What you can do Listen very closely is
a. Post your btc address
b. Get a refund
c. log out if your account
d. make a new account not in any way related to the 1 you are on now
e. go on with life
I would say no other actions should be taken at this point.