If an employed or self-employed person, entitled to unemployment benefits under the legislation of a Member State to which he was subject during his last employment or self-employment pursuant to Article 69 of the Regulation, goes to Greece where he is also entitled to unemployment benefits by virtue of a period of insurance, employment or self-employment previously completed under Greek legislation, the right to benefits under Greek legislation shall be suspended for the period laid down in Article 69 (1) (c) of the Regulation.