You could do it with your own Account or set up dummy accounts for it, never had problems with it for over a Year of using it.
It's pretty Simple, all you need to do is to connect Twitch and Amazon, get yourself Amazon Prime with a bank account and refund it immediatly. Most of the times they never even bill the first payment, sometimes they do but it gets refunded on the same day or the next day, the thing is that even if you refunded your transaction and by that cancelled your Amazon Prime you still have it for approximatley a day before Amazon completed the rfund, in this time you can order with Amazon Prime and claim your Twitch prime loot. You can use this to claim more Loot too, some games only allow it to be redeemed once but from time to time you have games that allow you to claim the loot multiple times with different Twitch accounts.
