Can I get an additional 6-day extension at Phuket immigration before my flight?

The user is asking if they can obtain a 6-day extension on their visa from Phuket immigration before their upcoming flight. The community responses indicate that generally, extensions beyond the allowed period are not granted, and the individual would face an overstay fee or might be given a 7-day stamp to leave Thailand. One comment suggests an alternative solution of exiting to a nearby country and returning for a new 45-day stamp.