Bad Service, Attitude and Lack of Caring

I had received bad service from Virgin active through the gym in halfway house. Me and my wife ended up quitting the gym. First it was the card that was not not opening while we were paying and they failed to fix our problem. I complained by the bad treatment of my child twice in their child care center while we we were at the gym. Twice my son was seen next to the indoor swimming pool and when i raised this I was promised they will address this, but I never received any feedback. Even the head office failed to help us on repeated occasions. My child on numerous occasions was outside the play area and inside the gym. I raised this with the manager on numerous occasions and it continued. Today they was me to pay what is outstanding on my account and my wife had been blacklisted and she cant get funding. Why do they want me to pay though the service I received was bad and none of my concerned were addressed. Our accounts had been handed over and our credit score especially for wife is bad. This is not fare that the company is only interested in us paying and failing to deliver the service to us. I'm not refusing to pay, but all I need i need is the company to render a good service.