Cell phone was stolen and someone racked up a healthy bill calling guatemala until I cancelled it a day later... I have the numbers they were calling there... is there anything I can do about it..

cell phone was stolen and someone racked up a healthy bill calling guatemala until i cancelled it a day later...... i have the numbers they were calling there...is there anything i can do about it...?
I would file a police report and let the service provider know that its not you that racked the bill up. They will look to see if this is normal activity for you to make this type call, if they show that you normally don't call Guatemala, then most of the time they will eat the loss, but if you call this area sometimes, then they probably won't believe you.