Unauthorized payments

recently myself and a few other co workers that have Xfinity have experienced payment arrangements being made without or knowledge. This is not ok. Meaning that money will be deducted from your account without authorization. Why is this happening?? This is something that needs to be fixed immediately. When calling Xfinity customer service they seem to not understand what you are saying and then want you to set up an arrangement. Sorry but for the amount of money we pay for the service we should not have to experience the difficulties of the language barrier with eh customer service reps or the system glitches with payments be arranged without the customers approval. Someone reach out to me if not maybe its time to disconnect service.