Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (139.49 USD): od7off
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG8N9D, BGMN9P
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for Meizu Note 9 4/64GB Black? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).