Fraud Alert was detected on my Credit Union Account for a charge from Roku for Boomerang that I did not make or Authorize. Who do i contact if someone used my banking info to subscribe to their account without my authorization and how can I get a refund?
If there is no charge showing, then you should keep in mind that Roku may not be the one that charged you. You could indeed be the victim of fraud from a compromised credit card.
You see, when a financial institution get credit card data submitted to them, there is a description that is essentially free text. It can say anything.
It's supposed to say who made the charge, and contact information about it. However, it can contain any information.
If a thief (no other way to describe them) obtains credit card information, they can submit the information and fill out the text any way they want. They can put NASA, they can put Queen of England, they can put UNICEF, they can put Roku, they can put anything. In this case, they put Roku. They're thieves, so a lie on top of theft is kinda par for the course.
Someone compromised a system that had that credit card information -- restaurant, gas station, online store -- and some thief (maybe a different person) ended up with it. They submitted information and put Roku in the description.
Roku didn't do this. Some thief did and then lied about it.
When I get a fraud alert from my CU, I just select: No – I did not make this charge, and they take care of the rest. Ie: charge disappears and soon I receive a new credit card. You may want to contact them to make sure that's how they work.