There’s a company by the name of [removed] and they want to review my book for a very expensive price. Any advice?
Steer far clear of [name removed], as well as any firm known for spamming. Any company that claims to be employ book promotion professionals, but that uses illegal spam to promote itself, should be avoided.
You should never pay someone to review your book. If readers find out you paid for a review, that can ruin your reputation. Read more here: