Decreasing channels included in a package

In October 2018 we were presented with new Business packages. Various were available and a list with channels per package was included. After studying the various lists, we opted for the "Stay Basic" package. Aside form various other channels it included Supersport 2. When Cricket World Cup started we were horrified to find that our package no longer includes this channel - and our guests were unable to watch the Wold Cup. The reponse from DSTV was that the package no longer includes this channel. I was disturbed by this - does this mean they can take more channels away from us ? Does the fact that we contracted for a specific service, which we no longer receive, not present poor business practice ? We own a B&B and have more than 20 business subscriptions and after having been a customer for more than 15 years, is this how we get treated as a client ?