Key legal question
Whether the defendant owes BVG contributions, default interest, and administrative fees
Extracted holding
The defendant must pay CHF 13,612.25 plus 6% interest from 2015-09-01 and CHF 690.00 in administrative fees.
Extracted reasoning
The affiliation agreement and account statement established the contribution debt. The defendant’s objections about employment and salary changes were unsupported because no timely mutation forms were filed. Default interest followed from Art. 66 BVG and the agreed payment deadline; the fee items were due under the cost regulations, but no interest was awarded on fees.