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Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
Coupon (58.64 USD): BG75597c
(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): BGXIN387, BgcLuBofErtA10, 7d18f7, BGAFF10OFF, BGJATD387, BGFEFO387, BGTHFR387, BGDEAL387, BGMATH387, BGMRDC25, BGAPFR387, 13f142, BGAPTD387, BGHONEY2110, BGAPSX387, BGJEEG5, BGWEEKAMY387, BGAPMAY387, BGisly387, BGisy387, BGIISDC6, BGPDhome36, BGGK387, BGIS387, BGSPHOME29, BANGGOODSD, BGUdb37, BGUbf32, 00c906, BGc2f3b7, tRaDetRaCKeR, BG1ead45, BGb02eeb, BGHECARE1, BGf5e92d, BG9da7f7, BG4ee866, BGHOM122, BG48b87c, BG8ReviTrage, BGc5ce4a, Cuponation9, 9OFFSUMMER, BG7762b9, BGc55cae, BGf9cd9e, BGbe32a6, BG8e46d4, BG2d69c4, BGb4d22b
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for Jeeback G5 Electric Neck Massager.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).