Poor service and inefficient systems

I went shopping at Sandton city after work and put my parking ticket in the machine on my way out. It returned the ticket without any sign or required payment or valid window. I proceeded to drive out and when I reached the exit- it said the ticket was unpaid, fancy that! I ring for service and a lady shouts that I have to reverse back and pay for the ticket after my explaining to her what happened. Talk about a nonsense system followed by an even more nonsense response. I reverse all the way back to pay for my ticket and when I am driving out the second time round, the machine takes my ticket and the boom opens for about 2 seconds and closes again. I rang for service for more than 5 minutes and no one answered, so I was stuck there at the boom waiting for someone to come with an actual solution. Eventually someone answered without asking what the problem was- which makes me suspect that they were aware of the problem and just ignored it. Appalling service, management need to do better with your payment machines and your cheeky staff.