Contract Despute

We opened 2 new contracts. My contract was made unlimitted data usage. I would not have agreed to such a contract as i am under debt review at this time. The lady at Vodacom in Highveld Mall Witbank evaluated my previous data usage and said that i bought more than R1000 worth. This new contract will cost me cheaper with 2g data. I acepted. A month later i only started using the contract. Under the empression it was limited. I used internet youtube. The next month 3rd October a received a account of R 24 537. We went to see the consultant at Vodacom. She acnollaged that a mistake was made and my phone was on unlimit. My data usage was switch off immediatly till now. Vodacom wrote off a amount off R18 584 on 18 Oct. R5952 we have to pay. That amount is also a disputed amount. 28 Oct we pay R2300.(this amount is my phone my wifes and my daughters phone) we paid it cash in by vodacom in witbank. Balance R 3 652.57. We was told to come back after the 3rd dec for a further despute. On the 15th of dec we back at vodacom the same lady helped but she don't mention the contract was written wrongly. Vodacom declined the despute. On 1 Nov we received an account for R14 782. 24 Nov we R1 957 at vodacom for all 3 contracts. Vodacom placed that amount on the arrears amount outstanding. My wife and daughters phone was blocked immediatly. We received a sms asking us to contact them to arrange for our contracts to be made prepaid. I contact vodacom and the operator said i must first pay the full amount of R19 020. Today the amount is more than R20 000. The month of jan we not paid because the lady at vodacom said we must wait for the despute to be settled. All that we want from the beginning was that the amount i used in the acces the 12gig (10gig free) would have been written of for their mistake. The running amount should have been stopped long time ago and the settle amount could have been agreed on. Everyday this amount goes higher and we kept liable for their mistake. You can contact me on my cell nr ********** Tinus Cordier