An Italian with illegal UN ID hanging around without contract

Her name is Barabara Ubaldi. She worked as Outreach, Organization, Follow-up Coordination of Events in the Knowledge Management Branch of DPADM/DESA. Her contract expired on September 2008. 

We would really like to know how can Ms. Ubaldi :

1. Held a valid UN ID when her contract has already expired?

2. Occupy an office with a cost of $893 a month, not including telephone and internet usage, which run approximately an additional $203 a month, without having a contract?

3. Continue to use UN.ORG email account and use FAX and official communication lines of the UN with the outworld?

4. Reimburse UN/DESA for personal calls and use of technology when she is no longer on payroll?

We call on Mr. Sha Zukang and other USGs to immediately investigate the status of the contract of Ms. Ubaldi and take necessary appropriate actions to protect the name and legal status of the United Nations and our Department.