Continued Forced 6 Day Punches?

Just curious if it's just my local or anywhere else, but peak has been over for quite a bit now, both drivers and preload at my hub are back to their normal schedules and volume but they're still sending out texts to local saying everyone needs to work Saturday despite most of us being Monday-Friday workers.

Can they really just keep forcing us in 6 days a week or is there anything we can do?

EDIT: Was told they "absolutely need everyone to work 6th days" because despite being short staffed, they kept none of the seasonals