Just approved for my claim after 7 business days. Total was $499.84 for 4 nights hotel at country inn newark airport and one Ubereats meal. Reason for delay was hurricane harvey. I sent in a lot of documentation
Delay letter from United (this took 2 weeks to get)
Card Statement
Screenshots from flightaware of my 3 cancelled flights
E-ticket receipts for all my flights, both parts of the round trip even though this was a one way ticket and also the flights that never happened (cancelled ones)
Screenshot from United website regarding Hurricane Harvey cancellations
Receipts/folios from hotel
Ubereats receipt