Aliexpress
Click here… to search for Xiaomi TOPCREATING DK450 1.7L 1800W Electric Water Kettle on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
Coupon (87.31 USD): BG1111KA
(CouponsFromChina.com tip: apply code in your basket (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): PICODICOM, aff7off, bgssaff9, BGaDmITAd, 7d18f7, 502C6B, BGBFAFF2019, BGCITYADS2019, Email3, 2020CNY, BGHOMEAPP, bGhOnEy10, BGTT10, Email5, BGSS10%SW, bgshOOp10, BGHome15%, BGHOMEAPP13, BGHOMEA13, 13f142, BG10OFFAFF, BGwhielabel, BGYY001, BG10OFFAFF1, BANGGOODSD
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi TOPCREATING DK450 1.7L 1800W Electric Water Kettle? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).