I am starting to lose hope now as no-one can seem to help me with this! If you have any other suggestions or know anyone who maybe able to help it would be very much appreciated.
Your questions already got awnsered in your other thread containing the same issue.
If your btc address (which you are 10000% sure is right) is not contained in the signing-tool from the ledger wallet and
your xpub didn't regenerate the address within your first 8000
addresses (trying the first 100 would be more than enough)..
this address hasn't been generated by your ledger.
You may have failed copying the address.. there may be a clipping virus which replaced the btc address in your clipboard...
Any other form of malware.. quite a few options.
Yes I do have my 24-word seed written down from my Ledger.
What do you suggest? A Ledger reset/reconfiguration?
I wonder why didn't you already try to reset your ledger?
You can reset it as often as you wish without losing access to any of your coins.
But hopefully you have written down your seed correctly..