Price lock and Dstv bad service and Ripping their customer off

I have complained to dstv on numerous times but I have not been help at all -the is disney subscription that am paying but am not using and did not apply for -the showmax on my explora ultra does not have audio -my bill is not locked and I am over changed for added service I did not request -I called the call center no service at all in fact the agent does not have any idea about the products at all