Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (24.29 USD): BGAFF10OFF
(CouponsFromChina.com tip: this code has to be applied 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): 502C6B, fphone, BGminiphone, 2019SPEDM, aff7off, bgchinafest, BGBFAFF2019, BGDCC1W1, BGCITYADS2019, BGphone1A, BGVDay10%off, FBCOUPON1, BGBK15
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for iFcane E1 Quad Band Card Phone is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).