Hi, I'm Nathan.Sorry to hear that you're having trouble with this but I'll do my best to help you.
Is it the amazon device you are trying to set up (the actual stick) with an amazon account, or are you trying to subscribe to the sling service?The 2 are completely separate and have different billing functions.
Hello, it appears your question is still open.
Do you need more help with this?
Please note: You have already paid your fee to the site; I'd like to help you and provide value for that fee, but I do need to communicate with you here to do so.