I can't tell if it's worth it or not to get the Twitch Prime thing lol
(Don't watch streams but the bonuses look nice)
You can buy a month subscription to Amazon Prime then connect your Twitch account to your prime account, or create one. Get the twitch prime loot then cancel your prime membership.
It'll cost about £8 initially, but you'll get it refunded if you don't buy anything off Amazon. You can also do it with a new amazon account and get a trail membership for prime - You'll still need to use your bank card though.
Very quick and easy, worth doing for free stuff