[melo435]

Is there any chance of, lets say, Amazon to see that the other item was bought in other account?

Yes, they can obviously see the Item was Invoiced to the other account.

do they ask anything or do anything to the person that bought the other item?

They may question It, but the person who purchased the other Item Is "you".

But won't they ask the person who bought the other item anything?
Like to return the item, what has been delivered, etc? @mothered