I arrived at LHR last night with a damaged suitcase. Hard top one, with a 5" gash across the top of it, as though something had hit it with force at a sharp angle, leaving a great big dent, and not fit for purpose.
Unfortunately, I was unable to report it at LHR, but I may try calling them tomorrow (by the time I got online today, their 'damaged baggage' telephone line was closed!).
I don't have a receipt; is it worth even reporting it?