The first step I recommend you do, is check the guides and policies below:
https://support.google.com/google-ads/community-video/307426020
https://support.google.com/merchants/answer/6150127
https://support.google.com/merchants/answer/6363310/follow-the-merchant-center-guidelines
https://support.google.com/merchants/answer/7052112
https://support.google.com/merchants/answer/4752265
https://support.google.com/merchants/answer/13693865
https://support.google.com/merchants/answer/6149970
https://support.google.com/merchants/answer/9158778
https://support.google.com/merchants/answer/6150244
https://support.google.com/google-ads/community-guide/241068758