eWallet rip-off

I have had a FNB account and recently I tried eWallet to my son's account as he need urgent cash. I unfortunately paid R100 into his cell number which he gave me incorrectly. I tried to contact FNB to find out how I could reverse the amount and was told FNB can do it for a cost of R50 or I could do the step-by-step which would only cost R14 and the operator from FNB gave to me the step-by-step and I wrote these steps down. I tried and all that happened is I sent another R100 to the same incorrect number. So I contact FNB again and was told that I had done it incorrectly but I used the step-by-step...So she asked me if she could reverse the amounts which I agreed to for R50. I never realised that it was for each transaction! So for R100 + R100 to be reversed I got charged R50 + R50. I questioned the operator why these steps aren't displayed on FNB's website or that one can read in-depth on how to do the reversal manually. She said they haven't done that facility. Also I feel, after following the operators step-by-step guide it still never worked and then not be told each reversal would be charged. Why does FNB rather not just take R100 and let me bend over at the same time...REALLY!!! Then I wonder why I am a client at this bank cause it is all about charges! Don't think you guys play fair and will definitely not be using eWallet again...Its a load of nonsense. R200 reversal which cost me R100....NOT IMPRESSED AT ALL!!!!!!