Social media and telegram groups are filled with scammers and they are waiting for people who post doubt about lost coins or when your coins are stuck in the exchange and the audacity to cook up a story that could scam innocent people who are not aware of these situation.

The wallet belongs to Luno and i have reported the user and hopefully we will get a reply from them and he as collected over 7 bitcoin and still holding 1.7 bitcoin in the wallet.