New Pet Treater Cat Pack Monthly Subscription Available Now! Last updated by Hello Subscription on September 23, 2017. Subscription Box News 2 comments! Hello Subscription independently researches and reviews the best subscriptions and products. Things you buy through our links may earn us a commission. Save for LaterGo to commentsNotification Pet Treater is now offering a monthly Cat Pack! The cost is $12.99 and for a limited time you can get your first month for $9.99 with code LOVEMYCAT! Are you getting a Pet Treater Cat Pack?