Recovery of unpaid gross wages: obligation to pay claimed remuneration and interest due

The Federal Labor Court (BAG) ruled in favor of the plaintiff, reversing and amending the lower court judgments to award the employee €580.23 in gross wages plus interest from August 5, 2012, while ordering the employer to bear all litigation costs. The dispute centered on a claim for unpaid remuneration, where the employee challenged the employer's failure to pay specific amounts due, with the procedural history involving initial dismissal by the Labor Court of Nienburg, a partial reversal by the Higher Labor Court of Lower Saxony, and a final successful revision by the employee before the BAG. The decisive legal basis was the statutory entitlement to remuneration under the individual employment contract and relevant wage law principles, establishing that the claimed sum was owed and that the employer's defense against the payment claim was legally insufficient.