I got the email. I've been trying to upgrade to the $11 plan, but every time I click on Confirm and Change, it pops up red text saying, "Something went wrong. Please try again". I get my Max through VZW, but it says right in VZW's app that I'm supposed to be able to manage my plan/tiers, etc. through Max's site, not through VZW's. I've tried the change on both my Android devices and in two desktop browsers (Firefox and Chrome). I have no way to reach out to Max because their "contact" option is a useless chat bot.