I agree with that. Don't let them screw you with lies. "Certified, return receipt requested" is what you want. That makes them sign for it, and you get a postcard back proving that they received it. ("Registered" is for sending valuable materials through the mail)

And/or record every phone conversation you have with them. Check with your state, in some states you can record a conversation if at least one of the parties knows the conversation is being recorded. If your state doesn't allow this, just tell whoever you are speaking to that you are recording it for the hr department when you call in sick.

It is really awful that you are at a job where you have to be so defensive just to protect yourself from lies.

{{{{{wisewoman}}}}}