Obviously embarrassed to ask the question, but I was withdrawing Safe Exchange Coins from Trade Satoshi to a Safex (bitcoin address). The only problem is one character is lowercase when it should have been upper. Are these coins lost forever? I understand bitcoin has a sum check. I have 0 confirmations and no TXid for about a day.
At any rate if the coins are lost it is worth the cost in knowledge and learning from my mistakes. A costly one at that. I feel those who are actively engaged in cryptocurrency will be ahead of the game in the long run. It’s better to learn your mistakes now than later. My fears in “copying addresses” were either not selecting every character of the address, hacking private keys from copy clipboards, auto-correct, etc.