Aliexpress
Click here… to search for JJRC R11 CADY WIKE RC Robot on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (31.18 USD): BGROBOT10
Coupon (31.18 USD): BGRobot1
(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): BGR1150, bgssaff9, BGR1115, AFfbG10, BG1130, 502C6B, BGBLBOT13, FBCOUPON1, bGhOnEy10, BGJJRC15, BGJJRCR115, BGAFF10OFF, BGROK7, BGCHR59, BGCuponation10, 13f142, BGHONEY2110, BG6f1ab9, 00c906, ADMITAD2212, 2022ACTIESNL, Tabby20
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for JJRC R11 CADY WIKE RC Robot.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).