Not even trying to help me

I'm not impressed, i just moved my salary to Nedbank this month, i made a transfer which was future dated to go off today and i by error put the wrong amount to transfer. the transfer went off my account today and is going to an FNB account so the money will not reflect in that account today obviously. I called the bank to assist me with reversing the Internet transfer and they told me i have to talk to the person who i transferred the money too and ask them to refund me the difference- help me understand why my bank cant help me- other banks do it over the phone but this bank cant- i feel i made a big mistake coming over to nedbank if this is how you do business.