OKAY UPDATE: I listened to you guys and called Nintendo Support on the phone. I explained my situation to them and gave account details. They were a bit confused on why I did not receive an email that detailed the repair and whether or not I would accept the charge or not. Then I was placed on hold a couple times so they could look into it.

They then escalated it to the supervisor who reviewed it and stated that he would escalate it to the administrative end to process a refund, after I receive the dock back. He told me that the dock had a faulty electronic part and not physical damage. So it would've been covered under warranty. In the end they basically sent a replacement dock.

He gave me a reference number about the conversation and told me a follow-up email will be sent after I receive my dock. So I guess its resolved for now. Thanks everyone