Vodacom/Mondo *****

On 15 November 2018, I was contacted by (Vodacom) Mondo in which the sales person told me that I would receive data on my current contract at a cheaper rate. That I would not be charged at all for a new contract, that the "new contract" would only give me data at a cheaper rate for my current contract and as I dont have Vodacom reception at home she would send me a router free of charge. I would also be paying R50 less on my current contract each month. I was reassured over and over again that I will not be charged anything for the new contract. On the 2 December 2018 I spoke to a Vodacom customer care agent when quering the new contract and was informed that I had been charged with a 5GB data contract. A call investigation was opened. Up until the 10 February 2019, I had to email Vodacom weekly for response. On the 10 February 2019 they informed me that they sent an email to Mondo to assist and call me and told me to follow up with them directly. Mondo never contacted me so I contacted them. I was told my query has been escalated to their risk and ***** department for an investigation. I would receive feedback within 3-5 working days. On the 22 February 2019 I was contacted by Mondo who told me my query was assessed and deemed valid. That they have requested Vodacom to collect my device and once it has been collected the cancellation will be processed. On 26 February 2019 I received a quote for the amount of R3480. 68 which needs to be paid within two days in order to cancel my contract. Failing to do so, my contract will stay in force for the remaining of my 24 month period. How can I be charged for the cancellation of this contract when I was given false information regarding the contract?