I am interested to know what others have done in these circumstances and how it was resolved. In my case I put my card into a machine at a Tesco garage entered £200 to take out, It processed the transaction and said wait for your money but it never came. How long does one wait? after about 5mins I decided to go into the shop accepting the risk it may come out 10 seconds later and be taken by someone else. There was a security van on the forecourt so I asked the manager if I could speak to one of the security guys. I was told no in no uncertain terms. One of them happened to walk back to the van so I asked him whats wrong with this machine and explained what had happened. It transgressed that they had opened the back of the machine after I had entered the code but before the money came out. The money was not taken from my account but I am curious as to whether other members have had similar experiences or what they would do.