Have your Mom contact Customer Service to sort out the number of licenses in use. Online Chat is linked under Useful Links at the top of this page.
It's a free phone call, however: 1800 14410188
That's for the Philippines which I believe is where you are.
OMG! How did you know I'm from Philippines? Sorry for my stupid english.
My mom is not here.
We Moderators can tell from the IP number which is hidden from public view. If your Mom isn't available and you know the account log-in details you could call them yourself, or have her call them from wherever she is right now at whatever that local number is.
Your English is excellent by the way ;-)