We are building an application which requires a user to make an online payment for (possibly) his/her account. We'd like to keep track of the payer's name.
We note that the payer may differ from the owner of the account, but lets assume there's a 50% chance the payer is the account owner.
A) Fill the account owner's name to the billing info field and provide a button to undo the autofill?
B) Only provide the button to fill and have the user invoke it?