Shutters closed on me... money and card gone!

I dont think anyone has been so upset in human history than I am at this stage. Your atms at Northmead Square give nothing but problems. Before tonight my card was swallowed by these atms... now while busy depositing cash your shutters close with my money (unknown amount) and my card still in the machine. This without warning. The people using the other atm had to get help to keep the shutter open. Luckily they could finish their transaction. I call and they eventually open the shutters to find the welcome screen... my money and my card gone! Now I need to go into the bank and log a query and get a new card. How can you close the shutters whilst customers are busy with transactions? You better sort my issue out at the speed of light and I want my money and a new card (and no... dont think that you will charge me for a new card). I was advised not to cancel my card as the machine is secure and it is safely in the machine. You will be liable if any transactions go off on my account

Those shutters are dangerous and myself amd other clients could have been injured. Please advise how you close shutters without warning and this while the atm is in use? I expect feedback immediately!