Vodacom

I have upgraded my daughter's phone via internet. The biggest mistake ever. According to me it was a top up phone, according to vodacom it was an open line. The first installment was R1500.00 according to vodacom and I app**** for an R189.00 per month phone. The second month it was R4500.00 after my daughter's phone was off for nearly 3 weeks. She was to scared to use the phone. They audit the phone and informed me my vodacom account is in credit for the amount of R9000.00 and then our phones was suspended. I phoned vodacom and they informed me that I owe them R3500.00 without my monthly installment. After a huge fight I made arrangements to pay in 2 months the arrears but the 15th R877.00 and end of the month R877 for 2 months. They agreed on that. today our phones was suspended again. I phoned to hear what is going on. The reply of vodacom is I didn't made an arrangement like that and I must pay an amount of R1900 before they will switch on the phones again. That is not fair. And the best part of this all a guy phoned my daughter and told her number belongs to him and he is getting huge amounts from vodacom that he owes. Vodacom says they cannot assist me with this problem.