Meh. My tier was extended too.
This despite the fact that I emailed QRPC over a month ago to request the 50,000 qmiles and then followed up again yesterday.
I was only 54 qpoints away from renewing Platinum (based on the 24-month calculation) with over 6 months left until my renewal date and flights on QR worth 40 qpoints already booked for this month. I do hope it resets the 24-month counter properly if/when they retro credit the qmiles.
Not a great algorithm if you ask me
