Thanks. Have conversed with LATAM on Twitter and after a few nonsense replies (PE cabin with A/B/C layout...) they’ve admitted the aircraft change and downgrade and said $100 in cash or $200 travel voucher will be offered at the airport.

I’m not interested in small change comp and want the class of service I booked or better. They have refused a move onto the flight before (1640) as it is Premium Business not PE. After your reply I have pushed again saying if a downgrade without prior warning is acceptable then an upgrade when space is avaialable should be equally...

They have offered the 1505 with PE but that is 3 hours adjustment to my schedule vs 1hr 20 for the next flight.

Lets see. Thanks.