bad service Old mutual Call Centre

i made a call at 10:24 to the Old Mutual call centre to change deduction date and increase a debit amount on a Tax Free Plan. I was assisted by the most rudest consultant,Zulaigah Moos who lost her patience when she was assisted me. I kept on asking her to speak in a professional manner but she kept on loosing her cool. Kindly please address this issues

My details ********** 839 contract number ********** 0.