I've said it before, I'll say it again, buying any kind of followers/hits/views/likes/shares is a bad idea.
I'm sorry if this comes off as insincere, but to be frank, however much you spend on purchasing a followership the amount of integrity that you risk far outweighs the temporary, low-quality, benefits.
I also understand that it's all too common, and, in some respects, one of the only ways to get your content seen nowadays (which is deeply saddening), but I don't see that as an excuse. You risk the integrity of your organisation and the trust of those who would usually value your content.
Building your social media following from the ground up is a time-consuming, tiring and often frustrating process, but magic always comes with a price, and if you stoop to low-quality leads, you'll quite often get a swift kicking from a big old boot made of spam.