Anybody with cancelled flights purchased with Citi Prestige which were not reaccommodated? Would like to see if you attempted to file a claim against Trip Cancellation & Interruption Protection.

Carrier in financial default is a covered reason and it covers up to $5,000 USD:

• Additional costs to get the Covered Traveler home if the Trip is interrupted, as long as new arrangements are within the same fare class service as the original booking, such as economy or business class.
• Additional fares or tickets needed to rejoin the Trip that has been interrupted must be booked within the same fare class service as the original booking, such as economy or business class.

Not sure if you can file claim before travel so perhaps buy a refundable ticket (in case Citi denies claim).