Bad customer service !

Good day , I would like to report Ster-Kinekor in Limpopo , Polokwane at mall of the north . We went to the cinema with the long weekend on 24/09/2017 , just to end up by booking tickets and finding out that for the third time i receive a new club card ! when i queried the matter they said they inserted my email incorrect. When I asked the manager what will happen now they said that they have to give me a new card and that there is no disscount ! How do you explain that they made the misstake 3 times and we will pay full amount but there was a promotion ?? we bought five tickets and they had a attitude when I said im really unhappy for the service. how do they want new customers when they cant even keep their regular customers happy ?