FNB lets me down, encourages THEFT

I did a FET on 26 May 2014 accidently into the wrong account and only found out about it on 3 March 2015. I was told telephonically by the Newcastle branch that they could not assist and to call Online-Banking ***. I had to fill in forms and then told by The FNB Private Wealth Service Suite Team, ( Sihle Khanyeza) that : We wish to advise that your request with reference number CAS-49039-C9J0J4 has been closed. No inquiries handled if older then 30 days. No advice how to take the matter further nothing, just...matter CLOSED. Unacceptable. I have been a client of FNB for about 35 years and this is how they assist me. I think this so called policy encourages theft. I have given them the account into which I paid the R1710, how can it be over and done? <br> <br> Please help me.