Bad customer service

I'm disappointed by the way Dstv treats their customers, when you call they will take time to assist you with what you're enquiring about. When they attend to your call your minutes are almost exhausted, and during the conversation your call will lapse and they don't bother to call you back. You must go and get airtime to call them back so that you can give them business, to me that's unprofessional because they are the ones who are in business here, and not me.