Rude call centre staff

Im really frustrated with Vodacom. I paid my contract in full and received a settlement letter in March 2018. To my surprise in May 2018 i reveive an email for outstanding amount of R7.11! When i called to query this i was transferred to 3 different people. When i got through to subscriber collections department i spoke to a Dimokatso who was verry arrogant when i asked why my ITC status wasn't updated when my settlement letter was sent she hang up! All the inconvenience and nobody can tell me why these things wasn't done in the first place! This is affecting my credit record negatively because someone didn't do their job?!

I will not ever concider taking another contract with Vodacom again.

Thank you to Fulufhelo who tried to explain and direct me in the right direction.