Ramazan Bayram would normally have started with the preparation 1/2 day on Monday 4th July & the 3 subsequent days 5th - 7th the usual 3 day end of Ramazan holiday.
The 4th has been declared as a full day off & 8th has been added. As such, the banks will be closed 4th -8th inclusive, but with a weekend at either end, will effectively be shut for 9 days.
The ATMs have been known to run out of money in the past, so worth getting what you need either by 1st July or over that weekend