PHAEVERS review for Google & YouTube

I have had this app since August with no problems. Now I receive a message stating "Your account violated the circumventing system policy," and "We've detected suspicious payments in your account." I have not touched anything since setting up the account and received these messages. When I reach out to them, the explanations are extremely vague. I ended up deleting all merchandise, reentering my credit card information, making sure I do not have multiple ad accounts, and still cannot use Google Ads. The merchandise is not showing up in this app like it is supposed to. I really do not see how I benefit from the app and I see no purpose in having it. Not sure if this is a Shopify issue or a Google issue, in terms on how they connect. I just know I have no issues with using Facebook for virtually the same thing. I know I am not the biggest business, but Google needs to make things a little more user friendly.