I have had some Xem coins since 2018, I didn’t win
XYM coins, and when I tried to sell, I forgot to put TAG, it was like coins sent to a broker the broker did not receive. Is it possible to help me? I need to recover my coins !!
There is no such thing like winning xym.
If you held at snapshot you are eligable to receive it.
Regarding missing memo you have contact exchange (to which you sent) support, give tx id and ask to send coins back.