At $8 per month for Prime members (it’s still $10 for non-members), Amazon Music Unlimited was already more affordable than Spotify Premium or Apple Music, but Amazon’s sweetening the pot with a limited time $10 credit when you sign up for a new account.
You’ll still get your one month free trial when you start the service, but the first $10 you spend on the service will be automatically refunded thereafter. That means you’ll get at least two full months for free, plus a little more if you’re a Prime member. Just note that this promotion is only available to new subscribers who have never signed up for a trial before. If you’re eligible, you should see the promotion mentioned after you sign in through this link.
Note: This deal is only available through the end of the night tomorrow.