weren't you speaking about a backup funding? Y would someone care about backup funding?
Y do you ask so many questions about everything in this thread? Everyone offering advice is doing this successfully but you are skeptical about everything... can't help there.
As stated, just explaining HOW it works, not saying you need to care about backup funding.
I'm a seller on ebay and use my account legitimately so do what works for you. It's easy for me to mix in $4k my cash loads every month into all of my regular transactions.
Next question?