投诉多次延迟送货Repeated delivery delays complaint

Dear Sir or Madam, I am writing about two important parcels delivered late by your Brookton service this month. Tracking references BR1842 and BR1975 were both booked for next-day delivery to my office, but arrived three and four working days late respectively. The first parcel contained printed materials for a training session. Because it did not arrive before the event, I had to pay for a local emergency print run. The second contained replacement parts needed to restore a shared office printer, so six colleagues were unable to use that machine for several additional days. On both occasions, the tracking page continued to show ‘out for delivery’ without a revised date. Please investigate why these consignments missed their promised dates and refund the next-day delivery charges. I would also like confirmation that future failed deliveries will receive an accurate revised date rather than remaining indefinitely marked for delivery. Copies of the booking receipts and tracking histories are available if required. I would appreciate a written response within ten working days explaining the outcome of your investigation and any corrective action. I hope this matter can be resolved before I need to choose a different service for future business deliveries. Yours faithfully, Alex Morgan