Well they certainly won't refund the money you have lost, no. In terms of data breeches then, of course, if VM were themselves to suffer some kind of attack which exposed personal data then they would be obliged to report it.
But in this case, can you prove that it was VM that leaked your passwords for your email? If, say, someone had your email address and guessed, or more likely, discovered that you used the same password (or similar) for another site which themselves were hacked - then that person would have access to your email. VM would have no means of knowing that it wasn't you and hence block access.
Although we often use the term 'hacked' it really is overused, there is no demon hacker, franticly probing for weaknesses to get into VM's email system, it's far, far more likely that someone got your password from other sources and basically walked in the front door.
