For me,
Before you spend in bulk.
B1: Warm up your account. By going to the camp with a natural image (should put photos of plants - avoid images of sky/ sun) with small spending. Let it active and spend on the first day with budget $ 2.
B2: After the first 1 to 2 bill, start increasing spending gradually: $ 10 - $ 50 - $ 100 (after each bill payment). And make sure your product does not violate FB's policies. If you think yes, you should read the FB policy to find a way to dodge. For example, opening the brand name, not mentioning the brand name in the audio section if it is a video.