pathetic service

i called your call center on the 17/07/2019 around 7/8 i regarding a billing of 300 that is supposed to be taken from my account month end as i did not understand why my contract does not have a stabile amount but it changes every month i spoke to zandile sithole your rude and arrogant agent who could not assist me as she would not listen to understand but very quick to answer and full of herself her customer service is very bad and it needs training again i am not her friend tha she can speak to customers the way she wants with incorrect information that she gave me all i want from cell c its to tell me how much my montly instalment is that i agreed on