Endless mistakes

<p>Would like for someone to explain to me why vodacom has debted R1577.06 since the 26 May if I only pay R358.00 a month on contract? whilst these debt orders were under go I was told that I need to go to the bank to pay an additional R330,00 which I did. I phoned vodacom call centre and was told that there was a mistake and it would be remunerated, It was not done.. I have paid a total of R1907,06 in the past 34 days, my contract is pre paid ...please explain this to me! I am 21 years old and can not afford for these mistakes to continue.</p>