Q11. A11. If you believe that a person asking for your PPS Number is not entitled to do so, do not give them your number until you have contacted Client Identity Services of the Department of Social Protection, Social Wefare Services, Shannon Lodge, Carrick-on-Shannon, County Leitrim (Telephone 01-7043281) for advice.11. A11. If you believe that a person asking for your PPS Number is not entitled to do so, do not give them your number until you have contacted Client Identity Services of the Department of Social Protection, Social Wefare Services, Shannon Lodge, Carrick-on-Shannon, County Leitrim (Telephone 01-7043281) for advice.