5 months and waiting for a refund.
Long story short, I booked a hotel through Navan in February. My reservation was cancelled by the hotel when I checked in and they made a new reservation even though I already paid through Navan/Priceline. I gave my card thinking it was just for incidentals but was charged the full price of the hotel for three days. I have been trying to get a refund for nearly 5 months and it has still not been resolved. I will never recommend Navan to any business professional in the future.