[chunky]

Hmm they could notice you just made a new account in case you are using the same CC on both accounts. Just stick to that account, buy some stuff without refunding it so it looks like you are a regular customer without any abusive intentions and then try to SE the phone OR the headset.
Like order the phone and pay for it, wait a few days, order the headset and refund it so it doesn't look like the first expensive item you buy gets refunded again. Just think about reading your story/investigating your account from the position of an amazon employee.