Key legal question
Whether the tenant extinguished the rent debt within the statutory grace period under Art. 257d CO
Extracted holding
The tenant did not pay the full arrears in time; the rent for April 2013 was paid after the deadline and the alleged set-off claims were not invoked in time.
Extracted reasoning
Only payment within the warning period counts; compensation must be invoked before expiry of the comminatory period, which the tenant failed to do.