Password reset and invoiced for a product I didn't order

<p>I received an sms stating "Hi Nathaniel, your service password has been reset for username HEN0******* Your new password is p*****The Axxess Team" (I blanked out the real details) at around 11:41 this morning. I thought nothing of it then but later the day when I checked my email I would see that I'm billed for a 2meg uncapped product. I then called in and the product was cancelled and I was told I would be refunded. I wasn't given a explanation how this happened as I clearly didn't apply nor reset my password. Can this matter be looked into as I am prepared to move my line to Crystal Web, they already managing my uncapped account. </p>