If you were able to restore wallet using the same seed phrase you had written down originally without any problems, the case shouldn’t be any different even after funding with a good sum.
My best guess is, you have done something to the wallet in your derivation part.
It’s always a garbage in and garbage out for these systems.
How about you don’t try to be any sophisticated and just try to restore a standard wallet, following numeral procedures. You shouldn’t have any problems restoring your wallet address.
I think I tried like 500 times with different parameters in the past 20 hours.
Tried my seed frase on iancoleman.io, it shows "invalid mnemonic".
Looks like its a native Etherium seed frase. That means the only option is - I used an extended seed frase? Because you cannot mess with derivation path, when creating a seed in Etherium. Or am I wrong?