id,product_id,bank_id,rate_type,rate,tier_floor,tier_ceiling,tenor_months,currency,snapshot_date,valid_from,note,source_document_id
,zweiplus:hypothek,zweiplus,mortgage_rate,,,,,CHF,2026-06-10,2026-01-01,"Existing-customer mortgage — rate on request. zweiplus is a B2B platform + cross-border DE retail, not a primary mortgage lender.",