Sunward Park Virgin Active does not know how to treat their members

I am completely hurt, embarrassed and very angry at the manner in which I was treated by one of your staff members by the name of Arthur at Sunward Park Virgin Active. I booked for a class for 21 Sep 2021 at 17:05, I arrive at the before the 5 minutes requirement (as per the booking rule), only to find that my spot was given away by him (Arthur). That's wrong but not the reason of my complaint, he says to me it is not a problem that my spot was given away because there is room for one more person, I then go into the studio to train. During my training session, he comes in to pull me out as if I snuck into the studio. He says things like I will get him in trouble - how am I getting him in trouble when he's the one who let me into the room, he embarrassed me in front of everyone as though I was being dishonest and I let myself into the room. That is completely unacceptable, I then go to the reception to lodge a complaint I am then told that Region managers are not in the club and that Arthur is the manager on duty. The same Arthur who I am unhappy about, het then continues to argue with me at the reception area while I still state how unhappy I was with his treatment, the lady on duty at reception loudly says, "why don't you move away from reception", and my response was, "I don't want to go anywhere with this guy", she rudely says to me "angikhulumi nawe", a remark I find very disrespectful, clearly the staff need a crash course on customer care. I avoided arguing with this lady because she is much older that I am but I too deserve to be respected, the same way she respects other members of the club.