RE:RE:RE:RE:RE:RE:RE:RE:RE:RE:RE:RE:Adventurous. Big on words. Low on substance You can track (some what) the number of sales in BC by going to the website and try ordering a large volume.
Say 200.
They won't sell you that many but will say whether that many are available or not.
Keep increasing your request until it's not available.
Go back the next day and see what you come up with.
Tedious but effective.
Resupply throws in a restart of numbers.