Opinion of Advocate General Wathelet delivered on 5 March 2014.

Snezhana Somova v Glaven direktor na Stolichno upravlenie ‘Sotsialno osiguryavane’.#Request for a preliminary ruling from the Administrativen sad Sofia-grad.#Reference for a preliminary ruling — Social security — Regulation (EEC) No 1408/71 — Articles 12, 45, 46 and 94 — National legislation making the grant of a pension subject to a condition that old-age insurance contributions be discontinued — Purchase of missing periods of insurance in return for the payment of contributions — Overlapping of periods of insurance in several Member States — Possibility for the insured person to waive the rule relating to the aggregation of periods of contribution and insurance — Cancellation of the pension granted and recovery of any overpayment — Requirement to pay interest.#Case C‑103/13.
Opinion of Advocate General Wathelet delivered on 5 March 2014