Poor Customer service

I thought fnb was suppose to help people and as a client I am very upset with them. I go to woodlands to update my details on the address and they can't even help me with putting in front of a number which on the proof of address I brought. Some supervisor/manager comes to me and starts giving attitude telling me \Listen here". I immediately ask to see a branch manager and she tells me she in a meeting. I insisted and she went to the BM in her office and no meeting. They start talking amongst themselves and they both come with same attitude to me. I don't mayb is because Im black and they white that is why I get to be told \""listen here\"" and why they decided to handle me instead of help me as a customer. Its rediculous now I have to go up and down to get help something that could be resolved in 2 min I have to spend to days n hours in the branch.VERY BAD"""