Disappointed client

Im highly and deeply disappointed with vodacom contracts their dishonesty is of the highest level,this is what happens i have 4 contracts with them so yesterday the 8th 2 of them expired and prior to that 3 months before I wrote to support in advance for the cancelation so today the 9th I called the cancelation depart to have them converted to prepaid but without success the lady consultant kept persuading and convincing me to upgrade even when I had stated the reason not to take the offer was due to affordability,she even told me that they will debit November and December which I find it strange,was also told that the email I've sent it doesn't it meant nothing for I have not spoken with the consultant,my question then is what is the purpose of the email is not considered to be effective.@vodacom pls sort this out unless if that's how you operate(decietfully so).I hope this matter will recieve the urgent attention it deserve.