Amazon used to accept btc in the past but later they stopped accepting btc as their mode of payment as the value of the btc is not stable and they fear that they might have some kind of loss if they continue accepting btc as it is a virtual currency and its market changes every now and then and they are not ready to accept it but there are alternative website and online shopping web page which accept btc as their mode of payment.You can even buy amazon product from an alternative web site named purse.io and make payment via btc its already being used by lot of people and so you don't have to wait for a day so that Amazon restart accepting btc.