Continuing the discussion from Another topic:
That’s great that you moved your BTC to a hardware wallet, but that doesn’t help sort out your BTG from the fork.
The date of the fork was right after bitcoin block 491,406 on 10-24-2017 (at 01:20:39 UTC): Full link to our explorer for that block: 491406.
What was the wallet address for your BTC on that date? That’s the address that will have a corresponding balance of BTG after the fork.
I notice this part of your original text:
If you held your BTC on Coinbase on 11-24-2017 at the time of the fork, then we know where your BTG is. Coinbase has it.