Yes, you read the thread title correctly, letters of compliment, not letters of complaint!
Anyhow i've been a PPS member for 14 years now during which time i've flown well over 1 million miles on the carrier.
Just last week - i had service from an IFS and LSS which i need to write to the airline about. It will be my first ever letter of compliment. The question is - to whom should i address the letter and to where should it be sent?