Aliexpress
Click here… to search for 360W 220V Portable Window Air Conditioner [EU] on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. This is new product in my database, so I don’t know if this price is good. I found coupon for you. Check this out.
Link: Banggood product page
Coupon (145.99 USD): BG80de33
(CouponsFromChina.com tip: just apply this code 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): BG12a73a
(probably won’t work, but you can try them out)
Price history and price alert
Not enough data to show price history chart… 145.99 USD is the only recorded price. It was not cheaper than that since we have saved it in DB.
You can set price alert (for Banggood).