I don't even know what to say, that is totally unacceptable. Have you hounded her? Tell her you know other PODS get their PTO approved right away when asked for months in advance, that is the policy to ask so that it is first come, first served and when the slots are filled in for how many people are allowed off in the "group" in the POD THEN and ONLY then should the PTO be denied. Ask her if the slot is full! Otherwise, again escalate, contact benefits.