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ArchiveOctober 18, 2026Mastermind
Case File · Audit · No. 100

Daily Casefile · Audit

The Dock Contract at Velodock Amsterdam

≈ 9 min

Brekelmans Fietsdiensten BV holds the service contract for routine maintenance, battery-module replacement, and emergency call-outs at Velodock Amsterdam's ring canal docking stations. The company has submitted its September 2026 billing schedule to the Amsterdam Mobility Authority (AMA) for approval and payment. AMA's internal audit team has flagged the invoice for cross-referencing against the service register, the master contract, and third-party records before authorising the transfer. Your task is to examine the six billing lines and four reference records, and identify the single line that cannot be squared with the evidence.

The scene

Velodock Amsterdam, a municipal bike-share scheme covering 61 docking stations across the city's ring canal district, Amsterdam, Netherlands, present day (October 2026)

Source documents

  • Velodock Amsterdam Station Incident Register — September 2026
  • AMA–Brekelmans Master Service Contract, Schedule B — Tariffs and Personnel Provisions (effective 1 January 2026)
  • Velodock Amsterdam Approved Subcontractor Register (AMA, current at 1 September 2026)
  • Supplier Invoice — GreenCell Logistics BV to Brekelmans Fietsdiensten BV, September 2026

Play today’s Audit.

This case first aired on October 18, 2026. A fresh audit runs every morning — same rules, five minutes, one solution.