Problem in ATM

I was having my salary account in ICICI Bank. My salary was credited and the balance was showing in my internet banking account. But when I have tried to with draw amount from ATM's of Andhra Bank and Vijaya Bank. Both ATM's declined the transaction. Whether there was problem in one ATM. Then the other ATM has to definitely work. But at a time two ATM's cannot go wrong. Then where was the problem? Whether the problem was in my account or there was a delay in transfer of money from office. But in real time if machine's like ATM won't work, then the customers feel dis satisfactory.
There is an Andhra Bank ATM near my home (Sharada Nagar Colony, Karwan Branch). The ATM frequently goes out of service. Image if you are doing a money transaction through ATM suddenly the ATM won't work. How frustrating it will be. So What I mean is thorough testing need to be done before implementation of any system.