Unathorised Migration

Last month I received a call from Vodacom consultant who told me they were running a special for all they're client where my bill will reduce by R50 and I will get about R200 extra airtime on my current plan. I was hestatant at first but she assured me that i will not pay single cent extra. About week later the order was processed and I got a letter via email for me to confirm the migration the letter stated that the migration will be free however my airtime plan will move from R200 and something to R400 and something the letter made no mention of the discounts which were so I did not sign it. I am now five days away from my billing date and have just received an sms saying my bill has increase by R200 and I inspected my statement and confirmed that my bill has icrease because of the migration which I did not approve. Please listen to those recordings and note that I did not agree to any of this. I was told that this reversal will be finalise by the 30 onf November in the mean time I will be paying the extra amount billed due to the migration. I want you guys to: 1. Reverse that migration and take your airtime back I haven't used it and I don't want it. 2. I also want to lay complaint against the consultant who initiated this. I made it clear to her that I do not want any extra airtime and she it's discount that Vodacom was giving to all their customers so it won't affect my bill in fact it will make it less. 3. I really would like you to fix this before my bill goes off on the 15 I do not want to pay extra.