You will have to do the difficult thing, which is to go to your supervisor, make amends and ask them about rescinding your resignation. It is better done as soon as you realize you have made an error. Going forward, be the best employee you can.
Yes, is the short answer. The manager can put a roster notice on a board with changed work hours on it, without telling you verbally. There are also many other ways of notifying you. It is usually reasonable for a manager to change work hours to suit the organization. Usually the manager in the interests of a happy workforce will try to fit in with workers' preferences but it is not always possible. Similarly, the manager may notify you in various ways. By letter, by a roster notice on a board, by email, by a message left on your phone or voicemail or to someone at your home. If the manager has given you enough notice of the change then there is probably not a lot you can do about it. If you did not get a verbal notice but you did get another notice which you didn't know about, then there is a problem with communication that you have to sort out with your manager.
how to write notice letter
Written contracts cannot be verbally changed. A contract can be enforced if only one person signs it, particularly against the ones that signed it.
i dnt know
If she's of legal age and wont leave ask the police to help after you have given her notice. If she's a minor you can't kick her out.
A salary increment notice is a letter that notifies an employee of a pay increase. The short letter gives the employee notice of the terms of their salary increase.
Apology letter to boss for absent without notice & for not receiving cell phone
The defendant cannot change the citation notice before or after they sign it. The issuing authority (usually officer) completes the citation notice.
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can a landlord change the locks on a commercial building without notice
larger
Most people wouldn't notice such a small change at all.