Appalling service

I tried calling the Vodacom customer services department to cancel a data contract. The call automatically terminated 4 times as soon as it reached the cancellations department. When I finally spoke to an Agent, the information given to me was that I had to pay an early cancellation fee which amounted to buying off the contract even though no device is being contracted on. This is merely a data service which I am cancelling due to me not having access to this data for a month and a half, even after Vodacom informed me that the technical issue was resolved. They now have no record of this! I informed the Agent that I wanted to speak to a manager and her response was that he/she would tell me same. I then told her that was not what I asked for and I had a legal right to request for a manager. She threatened to terminate the call and then did so without escalating my query. I am absolutely horrified by the service received and of the opinion that I should be paying a cancellation fee and not be buying off this contract; especially when it is just for a service and includes no device. I will be seeking legal recourse.