Then make sure you get out of this guardianship thing. Use the police report to say that she is stealing. And why don't you pack all your things and make a list. That way, if it's really stolen, your homeowners insurance might cover it. Have your 99 pay all the loss. It's principal! And make this incidence to get rid of them and remove everything completely.
If its just a brand, why is she "borrowing" it. 冇家教!大既冇,細都冇!
Cheer up
Order something else for your mommy. How about a Hermes twilly? Something else that is special. You still have time!