You must be losing customers to this system?
The number of people that post the exact same thing on here is unbelievable.
They sit there worried for days while they wait for the money to show up or not show up as the case may be.
Why can’t you verify a withdrawal source prior to withdrawing money? ie verify the bank account with the bank and then send the withdrawn funds there? Why does it have to go back to the original funding source, especially as they are rarely still using the one that initially was used