Complete let down!!!

An account that I have had for years was "Upgraded" and a new platinum card supp**** last week Friday. Upon receiving the new card I disposed of my old card and that's when the fun started. I am unable to use the new card or the new account this is impacting my day to day business and it's going to affect me tomorrow as I fly out of the country tomorrow. I now leave without a working card!!!! I've been trying to get assistance on my secure chat for 3 days now. What's going to happen???!!!