Yeah, that's been shot down already. This is just rumours and none is true. Though at least for now, there might be a not too distant future where BTC payment will be accepted by Amazon but considering this rumour perhaps it will be wise to wait for the official announcement.
The reply from Amazon was very vague. They denied the rumors, but at the same time they reiterated that they have an interest in cryptocurrency. The rumor first appeared in CityAM, which is a very unreliable source. So it was surprising to see many of the cryptocurrency users taking it seriously. But the plus point is that the denial from Amazon team was not very strong. And that is the reason why the prices recovered to ~40K levels shortly after the announcement/clarification from Amazon.