Once again Vodacom messes up!

I called Vodacom Retention Dept today at 7:55 and spoke to a Lydia. She was absolutely unhelpful and rude. When I mentioned that I am upset as Vodacom has double billed me and I want to cancel my account she says that she cant help me as I need to speak to the people who can view statements. So I said if I need to cancel my account you cant help me, she still maintains that I must speak to the people who view statements. How can Vodacom have RETENTION agents in a position who cant view the account holders account??? Then I ask her to transfer me and she dropped the call on me. I am absolutely horrified with her and I am going to cancel my account!!! In Dec I was assisted by a Sibusiso in the Solutions team after Vodacom messed up again and put me on a TOP UP package instead of my open contract that I asked. He was SO MARVELOUS that I didn't mind their mistake and waited patiently as he resolved it. I then decided to keep my account but after this morning I realised that there are very few and far between "Sibisuso's" in Vodacom and wish that there was more. I was assured this morning by Zandile that I will not be double charged as per their error once more on their invoice. Where I was meant to pay R750 they have now billed me R1495!!!