DR INTEREST ON CREDIT BALANCE - legal theft??

So checking my account this morning i see Nedbank has come up with, amongst other schemes banks have globally to ***** money "legally" you deducted interest, DR INTEREST on a credit balance??? WOW NEDBANK!!! is this legalized theft? the Rothschilds really have a scheme going. HOW does a bank deduct interesst on a credit balance? you have my money, you use my money, you CHARGE ME to use my money and then take money away as DR interest on a CREDIT balance??? I am blown away!! a new low. do people know what's coming with banking???