Followed all the instructions according to the website and other recommendations here. I received an email within a week, no further explanation besides that:
Thank you for contacting STARLUX Airlines! We are regret to inform you that your application of Other Airline Member Card Tier Match has been denied. Thank you again for choosing and supporting COSMILE by STARLUX Airlines. We are looking forward to having joyful journeys with you.
on December 31, 2020