Virgin active Loftus brings no joy

Virgin Active Loftus Park opened towards the beginning of April 2018. I have joined the gym, although their fees are really expensive. However, since joining them, three of the scheduled classes have been cancelled without prior notice. If you bring this under the attention of one of the "consultants" at the gym, they are really apathetic and offer a total different class to the one that you booked for. What really frustrates me is that they claim "it is a new gym" and "these are growing pains". My question is just: do I pay less because it is a new gym? This is unacceptable, because surely one confirms the classes with the instructors before scheduling these for the members? Basic management principle in my view. I have stood next to a "manager" who admitted in a telephone conversation with the instructor that she (the manager) omitted to communicate when the class is. My goodness! Please consider before joining Virgin Active. At R650 per month for two years (with an "inflation adjustment" in year 2), I expected more.