Claiming various Bitcoin forks - BIP32 BIP39 - checking which private key... (technical business)

Technical post, Bitcoin knowledge required

So I've posted the question here: https://bitcoin.stackexchange.com/questions/68182/claiming-super-bitcoin-sbtc-with-ledger-nano-s

All that BIP39 seeds and BIP32 HD (hierarchical deterministic) business, here is an amazing tool: https://iancoleman.io/bip39/

I'm trying to figure out which private key "owns" the coins on https://blockchain.info, in fact there is some mismatch in numbers.

It says 0.48

Screen Shot 2018-03-25 at 10.56.54.png

It does not show here

Screen Shot 2018-03-25 at 10.57.14.png

Iterating addresses one by one

Screen Shot 2018-03-25 at 10.57.39.png

I've copy-paste first 20 something addresses and some point it was 0 in, 0 out... I'm genuinely curious where are my coins stored. Probably the easiest way - send the full balance to another wallet that I control - simple! (could be from the same derivation path)

EDIT: Hunting for change addresses:

Screen Shot 2018-03-26 at 23.07.17.png

I thought I've investigated a first few from the list, I guess I need try once again, maybe there is some gap...