He is sketchy with his post and his profile says nothing about his location.
I suspect he is in Europe or Canada? Plus, he may not have BB e-mail services, but some kind of "50MB" data plan, which may not include BB service.
He may be trying to access Yahoo mail via his Pearl's browser.
If he has the full data plan with BB e-mail service, then it would be easy to answer his query.
It is really hard to figure out what he is doing based on his limited post. Especially in not knowing what kind of plan he has, etc.
Time for us rats to leave this sinking ship.