Staff have attitude with customers

i have been dealing with the Vodacom store in Tygervalley and their staff gave me different stories regarding a phone i have booked in for repairs and when i received a \new"phone back it also gave problems a few days later then when i go to the store the staff wasn't helpful and i had to wait till the next day to speak to the manager. Today i phoned the store and a certain staff member by the name of Mymoona felt the need to put the phone down while i was still talking because she felt i raised my voice. I phone back and she start shouting at me over the phone about not to raise my voice at her. If this is Vodacom's level of dealing with with customers then i think they should send their staff for training to learn people skills because they show no professionalism at all."""