Aliexpress
Click here… to search for 2x BlitzWolf BW-CL3 MFi 20W USB-C to Lightning Cable 1.8m on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Coupon (24.83 USD): BG8ReviTrage
(CouponsFromChina.com tip: apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Old coupons (from the oldest to the newest): BG59a23d, BG502ea9, BG6a95b0, BG8d0e79, pROMo8cuPoN, BGJUNEGSG9, BGa67d53, BGc28998, Cuponation9, BGsmartbuy4c
(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 2x BlitzWolf BW-CL3 MFi 20W USB-C to Lightning Cable 1.8m.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).