Created a GarudaMiles account through the Garuda app.Weirdly, I had trouble creating one through their website.
Got the tier matching form from Google, filled that out and attached that form with a photo of my passport, photo of my Singapore Airlines elite card and a screenshot of my GarudaMiles card (through the app) to CS@garudamiles.com
That same day, Customer Service advised they have sent through to management to approve.
Two days later, reply came advising matched to Platinum (Skyteam Elite Plus), valid until 31-03-2020.
Quick response and great outcome!
on October 17, 2019