Facebook problem, want a taken username...?

[Zainab]

Guys, i NEED this username that is already taken by a user but at first when i talked to her she kept telling me to make it something else but now she just sees my message but doesnt reply :/ what do i do? hack her account maybe? :/
i NEED it!

[Seo Jae Hui]

Facebook Username First Guideline:

"You can't claim a username someone else is already using."

[Ken]

Try changing the spelling around a little.Like if there is a c substitute a k for it.Or add a number at the end