The phones at Tax Solutions, an accounting firm in the south of Athens, began ringing non-stop early on Monday. On orders from the Greek government, the banks did not open that morning as harsh restrictions were imposed on the amount of money their clients could withdraw. The accounting firm’s CEO, Vassilis Bagourdis, had been up since dawn, nervously puffing at cigarillos and trying to figure out what the capital controls could mean: Had Greek banks at last run out of money?