Edit: I am a noob to this stuff. I used to have bitcoins when Mt.Gox was a thing but haven't used them since. Maybe some beginner mistake I made?
Some beginner's mistakes I can think of are:
- Mistaking Bitcoins as BitcoinCash or BitCore.
- Sending late to an invoice (temporary) address.
- Misconfigured his wallet's Satoshi value (BTC, mBTC & μBTC) thus, sending the incorrect amount.
- Sent BTC to a fake site.
But I'm going for this:
there's like a 5% chance the sending address was wrong but i really doubt it.
Wrong copy or "
clipboard hijacking" incident.