Had multiple accounts on one wallet, not all restored ?

Hello,

So I recently restored my wallet from seed.

It sort of went well…

I had two accounts on the iOS app. This was under one wallet. One was for me and one was for my dad. Mine was the “main one”.

When I created his account, I was never promoted with a seed phrase to write down (I’m not stupid enough to ignore that). Even right now I just made a test account and it never prompted me with a new seed. I assumed that both accounts would be recoverable via the seed I was given at a wallet creation

But only the main account (mine) actually had its funds restored when using this seed. My dads is nowhere to be found. I’m not sure how to resolve this or if I even can. It wasn’t a ton of money but I’m still frustrated and wondering what I did wrong

Thanks

Edit:

Would the desktop version work better ?

Obviously, I still have the seed phrase so I don’t think I’m SOL yet… hopefully

Had multiple accounts on one wallet, not all restored ?