It will be happened to all the people in this forum for at least one time.Even it was happened to me also.But my luck,it was not a big amount.I think it was around of 60 dollars.While copying and pasting,I had made some mistake.Then I had contacted the support of that exchange.They said it was loss.Because of the wrong address.It’s better to recheck the address for 5 times to skip such problems.
Whenever you are sending a coin and you don't know the chain which the receiver send to you, always try and ask the person for the chain and whenever yih are sending always be focused to avoid those kind of mistake, mostly the people that make this kind of mistake are the newbies that don't know anything about cryptocurrency, if you ask them to send wallet address, they always endup sending the wrong chain. I think we should be very careful whenever we are making transaction. Thanks!!!