Hi there, @Lifewit_Househo.
Thanks for reaching out to the Community regarding your TikTok account suspension. Advertising with TikTok is becoming increasingly popular so I understand why investigating the suspension and resolving it is important to you.
I just have a couple questions I want to ask so we can gather some additional information:
TikTok does have it's own rules when it comes to advertising products from certain industries (the casino and gambling industry for example) on it's platform. I have a link here that leads to a page on TikTok regarding it's advertising rules. Feel free to take a look as it may provide some helpful information.
I'll keep my eyes peeled for your reply so we can continue working together to determine how to resolve this situation.
I believe it's a Tik Tok issue and not related to Shopify.
Please try to create a new account, and reconnect it to your Shopify store, it should solve the problem according to your issue.