They probably should have done this in mid October before everyone signed up for 1 month for Black Friday shopping and last minute Christmas shopping. The fact that they waited until mid-January at least is a good reminder for everyone who signed up monthly to cancel now that they are done shopping. And it does look like they are giving a 1 month notice, my monthly renewal date is February 5 but they said I won't be charged the extra $2, $12.99, until March 5th, so they are giving people and extra month at the current price it looks like.
Nobody likes to pay money, but I think it's a good move by them. We were signing up about every 3 ro 4 months just to save $12 on $60 video game and get it day 1. We were also getting a free month every year, from 3 different people in our house with Amazon accounts, so we probably only paid 1 or 2 months out of the year. Sorry if we ruined it for anybody,w e just did what they let us do. They could have dropped monthly entirely, forced everyone to pay $99, but at least people will still have the option to pay $13 in July for Prime day or next November for Black Friday shopping. It could have been worse.
I have no relationship with Amazon except as a customer, and I'll be dropping Prime next month.