Don't transfer crypto with exchange => exchange. They don't allow that (even if I don't know how they can see the difference between a user wallet and an exchange wallet). You have to Withdrawal your coins and send it to the exchanche so like this : Exchange => you => exchange. Like that you can test the wallet.
I've done many exchange to exchange transfers with no issues!! What you talking about foo!!?
I talk about warning when you generate address to deposit. Most of exchange I used, there was written "do not deposit coin here from another exchange". Just saying.
