Poor customer service - incorrect information provided

I was going to make an online booking for a movie and wanted to watch this at the il Grande Cinema. I saw a slot available at 9:15 on Sunday and called the cinema to query if this is showing at the il Grande and was advised that it is. I explained to the gentleman on the other end of the line that I am going to book online and asked if he is sure, he advised that he is. I then proceeded to make the booking, while making a booking the cinema is not shown, it is only after payment is made that the cinema is shown. When I reviewed my confirmation it showed cinema 4. I called again and explained the situation and was advised that there is no show at 9:15 in il Grande. If I knew this I would not have booked it. I spoke to the manager who is not very helpful, he only wanted to know the name of the person who I spoke to and I honestly cannot remember his name. That however does not help me in this situation. I am now forced to watch a movie in a Cinema that I do not want to due to the incompetence of the staff. This is terrible customer service and poor resolution to my issue.

Please may I get a hold of someone who is actually in a position to assist me. I do not want a ****py movie experience.