SHAME ON YOU BRITISH AIRWAYS - SHOCKING CUSTOMER SERVICE

SHOCKING CUSTOMER SERVICE! I arrived in London only to find my suitcase was missing. After spending 4 hours in the airport I was told I could purchase "Basic essentials" for a "reasonable amount". When asked for a definition of these terms nobody could answer me. I was told to buy what I needed, put in a claim, and perhaps I would receive a refund. I spent 4 days in London with the same clothes - my entire trip was a waste of time and money. My suitcase was returned to me, damaged, 2 weeks after I returned home. Trying to reach BA customer service is a waste of time - the line is either not answered or you simply get "all our operators are busy" and they end the call. The online claiming process is useless because the reference number they gave me is "invalid" according to the site, and I cannot process the claim. Think twice before flying with this airline.