Paramount+ adding showtime
I have paramount+ And showtime purchased separately through iTunes. I would like to add showtime to paramount+ and make it a bundle. I have read the directions on their website 50 times, I do not see an option to “manage add ons”. I’ve tried this on my iPhone and on my MacBook. When editing my subscription, it will take me to the App Store to manage my subscription, but no option for add ons. Am I missing something?
MacBook Pro 13″, OS X 10.11