I dont know what's their intention. May be some fraud.Call in my phone and always leave a msg which is meaningless.

It's a collection agency called Global International.  They have a website for consumers that are getting called: http://www.globalcollection.net/Consumers.aspx

it's not fraud maybe. you need to look at your outstanding bills, maybe you haven't paid them in awhile.

I dont know what's their intention. May be some fraud.
Call in my phone and always leave a msg which is meaningless.

It's a collection agency called Global International.  
They have a website for consumers that are getting called:
http://www.globalcollection.net/Consumers.aspx