I will recommend that you give 3–5 giveaways at the very start of the product when it is in its launching state. Other customers have not ordered our product because we did not have any reviews at the start and our listing was not ranked. So, we have to do some giveaways to improve our sales history and get some reviews on them. But don’t do too many giveaways because if Amazon detects them, they will block your listing. One more suggestion from my side is that if you want to get reviews through these giveaways, then I will recommend that you use the Amazon Vine program.