You travelled by plane last week and your suitcase was lost. You have still heard nothing from the airline company. v.4

Dear Sir or Madam, I was one of the passengers who took the flight from Narita, Tokyo to Heathrow, London on 7th September. Unfortunately, my suitcase was lost and I could not find it after I arrived at Heathrow Airport. Although I searched it for an hour and afterwards lodged a written complaint to the luggage claim department, I have not been contacted yet by anyone regarding the whereabouts of the luggage. My suitcase is Grey Samsonite and approximately 10x95 cm in diameter. It has 3 stickers on one side and a heart-shaped sticker on the other side. The front of the luggage has a small scratch near the main zipper. My initials "DF" are also written on the front. It contains some clothing items, a few books and a copy of my university thesis, which I urgently require. I would really appreciate if you could urgently locate my suitcase and update me regarding this. My luggage claim number was 00026 and I can be contacted on my mobile phone, which is +2154875424, anytime. Thank you for giving the matter your attention. I am looking forward to hearing from you soon. Yours faithfully, Daniel Fillip