Double booking of seats

Went on Friday 26 July to pre-book 8 tickets for Sunday 28 July for The Lion King at Ster-Kinekor Rustenburg North West . The manager assisted me with everything and even told me to be early because it's going to get busy. Once we were in our seats we were told that our seats were harassed by staff 4 times and told our seats were double booked and that we should take a refund and leave while the movie already started and many seats were still open even my Mother in law was harassed more than once and a lady and her child came and sat in front of her seat. Worst experience and service I ever experienced the acting manager was to stupid and incompitant she couldn't make a plan to sort out the situation and apologize for their mistake. Just looked at me like I was the one in the wrong. The manager and staff ruined the movie experience for us.