"Should you have any issues, you should simply call myself" together with other weird new reflexive pronoun usages Sizzling Network Thoughts Agree with Jimi that by far the most correct antonym for "free of demand" is "available." But, "acquired" or "priced" could operate as the opposite of "free of demand." https://docs.google.com/document/d/e/2PACX-1vR1aRmbt0UmT4gxVq4IXbfDVfh2KrMfGfIz30gs2kLcIKk8h4EVktV5g2U8cNCzOTBSOZHhUqlkGaRY/pub