So I was looking to buy a new Kindle Paperwhite for my sister where I stumbled upon the Amex offer that gave me $40 off total purchase.
I proceeded with the purchase and during checkout saw that I had an additional $30 off as Student Saving discount. I think my Student Prime account triggered the offer.
I am not sure if this applies for every Student Prime but worth a shot.
Got a new brand Kindle Paper-white 6” for $54 with free same day delivery.
https://www.amazon.com/b?node=17020100