Rude - Manager!!

I called in the call center today and asked to speak to a manager who then gave me attitude over the phone. I simply asked him why was I misinformed by his call centre agent and then I had to call fnb and was told that they made an error with my ebucks points and reward level needed to be adjusted... I was then told by Sugan that it was a tenchnical error and I must call fnb to find out why I was not informed about this. I find his attitude towards me was absolutely patetic and this needs to be addressed because I am taking this matter up further and I spent more then half an hour on the phone with them. It cost me more then what points I have accumulated. Sugan manager must call me as I want her to listen to the conversation and I even asked Sugan when will I receive feedback he told me in the next 24 to 48 hours. Which I find to be absolute nonscense. If Sugan manager cannot call me then I would like to speak to the general manager for the ebucks team.