Little Zen One review for TikTok

Awful. The app doesn't work. I set up a campaign via the Shopify admin. The campaign "failed" so I "cancelled" the campaign after it failed; however, Tik Tok has continued to bill me (3 x the amount that is stated in the campaign total via the app dahsboard found in the Shopify admin.) I have reached out to Tik Tok (through the app, through the business admin site, and through the Shopify app channel multiple times... with no response.) I then reached out to Shopify, who said they can't help because it's a "third party" site. In my experience, the app is untrustworthy: 1. it doesn't work 2. there is no support from Tik Tok 3. there is no support from Shopify