I bought Instagram followers from a person on Upwork, more than 10 thousand followers, and after I paid him, two weeks later the followers decreased to 100 followers, I think that buying followers is not a good idea and may be in violation of the Instagram policy, I advise you if you have products or a business, to promote it on the account of a celebrity and influencer is better than buying followers, most of whom are fake and will not be active with your posts, and do not forget to use the Escrow service or any site that is a third party between you and the seller to guarantee your right.