My domestic flights on LATAM from this past September (SCL-CJC RT) took almost 5 months to post. I sent email in October to [email protected], got an acknowledgement, and then proceeded to write off any chance of actually getting credit once December rolled around.

I was pleasantly surprised to see it show up in my account last week. Thankfully I did not need the mileage for elite qualifying purposes, otherwise I would have made a bigger stink out of it.