You really need to take the bike apart and measure the stem to make sure of what you have. It's not unusual for specifications to change without notice and or changes to the bike's advertising materials as production progresses and the bike brand changes contracts with suppliers of parts.

If you don't want to be bothered with taking the bike apart and buying multiple stems to get the bike where you want it, consider biting the bullet and taking the bike to a bike shop where the shop will take the bike apart, and you can try different stems before settling on, and buying one stem (instead of buying stems one by one till you find the one that fits).