Have you ever written your Ledger seed somewhere you shouldn't? (email, dropbox, text file, etc...)
Do you see, in your transaction history, a +0.249 BTC incoming transaction to your wallet from the first transaction? Could you share a screenshot of your transaction history tab?
If your balance is zero and you didn't make any of those transactions, I don't see what else that could be.
the screenshot is here:
https://ibb.co/QnnCBsPI've never written the seed anywhere electronic, only on the card when i bought the ledger 2/3 years ago(checked, it is a legit ledger), and definitely never written down my passcode which is why I am so confused. I did use the ledger around 1 week before these transactions appeared, and the first transaction of +0.249 makes little sense to me. I've checked all my accounts and the bitcoin isn;t there. I was thinking that I may have made the transactions and forgot, but it looks like the bitcoin has been split into multiple accounts which definitely was not me, so I guess that is stolen somehow