Aliexpress
Click here… to search for TWO TREES Woodpecker 3D Printer on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (497.05 USD): BG807222
(CouponsFromChina.com tip: you should apply the coupon in your cart 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): Email5, BG3DP09B, BGAFF10OFF, 7d18f7, 13f142
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Here is price history (for all/most countries) for TWO TREES Woodpecker 3D Printer.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).