Thank you! I read about change address, and am hoping that is the case, but I do not see my coins on the blockchain.com wallet. So to recover these funds, I should download electrum wallet and import my seed phrase? Is this safe?
Yes, Electrum is safe.
Electrum official site:
https://electrum.org/Alternative. Bluewallet:
https://bluewallet.io/You can use this guide but do not add passphrase if the wallet does not have it:
On desktop Electrum:
Name your wallet. Click on standard wallet -> I already have a seed -> input the seed phrase and click on 'option' which is below the space you input the seed phrase -> 'check ✔️ extend the seed with custom words' and select BIP39 seed to proceed. After you click on next, input the passphrase and select the script type. I guess it would be native segwit.
Native segwit bitcoin addresses starts from bc1
Legacy starts from 1
p2sh-segwit starts from 3.
On mobile Electrum:
Name your wallet. Click on standard wallet -> I already have a seed -> input your seed phrase. At the upper right corner, you will see 'Electrum'. Click on it and select BIP39. Scroll down and check ✔️ extend seed with custom words. Input the passphrase in the space below it to continue. Read what I wrote above for the script type. I guess it is native segwit which its bitcoin address starts from bc1.
Restoring it on Bluewallet might be simpler for you:
If it is Bluewallet, after you click on import wallet, you will see three dots (...) at the upper right corner, click on it and check (✔️) passphrase to continue.
So I used my seed to open my wallet using bluewallet, and I do not see those 4 bitcoin in this wallet either, it is the same balance as the blockchain.com wallet, still missing 4 BTC!