Forced to pay for unfair disconnection

I’m so dissatisfied with the services of dstv, I had a decoder last year and bought a new one this year as I had moved houses and had to install the new one, I had requested on 18/07/19 when installing the new one that the old decoder be canceled of which the consultant who was assisting me said they will do as I requested, to my surprise my services were disconnected on 17/10/19 stating that I owe for services of which did not make sense to me as I had never missed a payment.

I called the service call center and I was then notified that both decoders were active, of which is a result of the consultant who clearly did not do their job, it is so unfair as a client to be forced to pay for services that I have requested to be terminated, now I’m sitting in a house with a deactivated decoder though it is not my fault that this problem occurred.

The consultant I spoke to on 17/10/19 took my details and promised to comeback to me and I am still waiting for this matter to be resolved, it is really unfair for me to be forced to pay for the services I’m not using as a result of an *********** consultant, the reference number for the call is ***2-i104