Bad service

Went to draw a bank statement yesterday at Nedbank promenade Mitchell's plain . The machine froze while printing my statement. I went to call someone for assistance and I was told I can not go inside because they close the doors at 15:45. I explained my situation to the security and I was told to wait for a staff member to come out. 20 minutes passed with my card still in the machine and one coming to assist me. I had no choice but to perform because I could see them inside walking up and down. I Was trying to cancel the transaction all the time but the machine was not responding. I banged the door to get their attention but nothing happened. Later on I was told to call and blocked the card. Told the security I can not do that because I will have to go back to the branch to get a new card and they will charge me R180 like they did with the previous one. I kept on banging the door, only when they were irritated (so I believe) they switched off the machine from inside and I got my card back. Now being stuck there for over 30 minutes moving from the atm to the door at promenade anything could have happened. Promenade is one of the malls where ******* takes places almost every second week. I'm very much disgusted with this. Very poor service