Preloved Electronics review for Google & YouTube

Made a campaign through this app and got a suspension from google for "circumventing systems". It is impossible for me to get through to google and ask them what is wrong. Shopify support does not want to help either, as they say google are to blame, eventhough the only thing I have done is to name the campaign and set a daily budget in the app. Something must be wrong with this APP. Please someone reach out if you know how to get this solved.