WW try and record for permanence their messages.. and then erase them from the voice mail and ignore them.. you were out... duh! Act like you didn't get their messages.. that might irritate them even more than if they can rile you. Maybe they are trying to get you to quit, as you are up for plenty of benefits if you stay just a while longer? It's cheaper for them if they can get you to leave (or build a "case" against you?)

Kill em with kindness.