i was treated badly by a consultant at maponya tel

My name desmond mokoena i have a two contract with telkom and as i went to query for a repair to one of my phone this lady called sindisiwe at maponya she treated me so bad as if am not a customer.because i did report screen cracks in my phone as it has a warranty .and i did report it to consultant at samsung and telkom .thn i do have a ref no .from samsung .as they said i should take it to any trlkom mobile then they wil see the damage if is repairable .when i get there i tried to explain to her she says they dont do repairs .as she did ask me where did i bought a phone from .or i should take it by my self to samsung in their one branches .and i believe i do have warranty on this phone .please advise me what to do if something like this happened .