They'd better hurry...
That seems to be why the ECB is putting pressure on Greece. Look at this way - if this week turns into “Hell Week” in Greece, the ECB is betting that the Greek voters will say, ‘Aw, $@%^ !!’ and vote yes in the June 5th referendum.
Calculated risk on their part; after all, you never know how an electorate might respond.
I recall a few years ago a previous Greek PM tried a referendum and that didn’t fly, so he dropped it. I can’t recall his name now.
Please note that I copied and pasted the entire article