ANGRY

I have an account with Vodacom which I took out in February this year. When I took out the account I was never advised that the premiums will fluctuate every month. I was advised that the premium will be R350.00 and the first month the second month I was billed R375.00 and then in May I was billed R409.00 and June they deducted R788.99.The only deduction I understand is the R788.99 which was for may and June and every time I call the call center I get useless agents who do not know what is happening and they leave me hanging on the line till I drop without getting back to me. One agent said it is for added extras which I did not approve of and told me of an advance I should pay since April. As a result I decided to downgrade to a lower package and I was advised I will pay 169.00 pm which includes 2GB of data and R230.00 airtime. To my surprise I have received a statement from Vodacom advising that I owe R430.88.in June they were suppose to deduct R889.87 and they decided to take amount less by R100.00. Why must I be punished for your incompetence? What is this advance for because I have clearly advised that I do not what the advance and you guys are ruining my credit record due to your negligence. If I take airtime advance I pay for,so why must it be deducted from my contract pls fix this as Im tired of calling and I have been client with Vodacom and I must say must say this is the first time I have experienced such unprofessional treatment from their representatives. I feel like this is *****. sort this **** out or I am cancelling this contract and will not be liable for any penalties.