I had bags delayed recently and the PSL were amazing, but had to be nudged at each step - they were already booked on next flight, but I chased asking them to forward to next airport as i had moved on the next morning to an airport they don't serve, then to get them delivered to hotel. They really snapped to it at each stage. I would keep calling and asking where it is and telling them what you want.

A Tile tracker in each bag really helped, as saying I can see they are at JFK now please get them on this flight number obviously helped clarify things. And indeed seeing they were still in AMS saved waiting for the last bags to arrive on the belt.

They were very quick processing claim for some essentials bought at inflated airport prices without quibble.

Lost bags are a total headache. With sympathy!