For information on the Greek aggregation agreement, please see www.socialsecurity.gov/international/Agreement_Pamphlets/greece.html Note In addition to retirement, survivors` and disability benefits, Greek social security taxes cover several other programmes, including health insurance and maternity benefits, unemployment and labour benefits, and family allowances. As a result, workers exempted from Greek social security by the agreement do not pay social security taxes for these programs and generally cannot receive benefits from them. If the agreement exempts you from Greek coverage, you and your employer may want to agree on alternative benefit protection. If you do not agree with the decision on your entitlement to benefits under the agreement, please contact a US or Greek social security service. People there can tell you what you need to do to appeal the decision. To end Medicare Part B, please send a signed statement requesting the termination of Medicare Part B, enter your name, address, date of birth, social security number, signature, date of declaration and mail to Federal Benefits Unit, American Embassy, Federal Benefits Unit, Vas. Sofias 91, 101 60 Athens, Greece. Medicare Part B is terminated with effect for the month following the month in which we receive your signed statement. Be sure to immediately return your life certificate or renewal form to Work and Income. .