I transferred money from my bank account to my Paypal account, and the same day I saw it in my balance. However I made a mistake because of exchange rates, so I transferred some more money, on the same day. This however I have still not seen added to my balance, even though it's been 4 days. How come this money has been taken off my bank account, but not been added to my balance? Do I just have to wait even longer, or can I do something else?